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2487515625 = 325672192
BaseRepresentation
bin1001010001000100…
…0111100111101001
320102100200212221100
42110101013213221
520043301000000
61050500032013
7115433351100
oct22421074751
96370625840
102487515625
111067157341
12595092609
1330847ab4a
14198521037
15e85b1a00
hex944479e9

2487515625 has 189 divisors, whose sum is σ = 5514011451. Its totient is φ = 1077300000.

The previous prime is 2487515623. The next prime is 2487515647. The reversal of 2487515625 is 5265157842.

The square root of 2487515625 is 49875.

It is a perfect power (a square), and thus also a powerful number.

2487515625 is a `hidden beast` number, since 2 + 4 + 8 + 7 + 5 + 15 + 625 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 2179302489 + 308213136 = 46683^2 + 17556^2 .

It is not a de Polignac number, because 2487515625 - 21 = 2487515623 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (2487515623) by changing a digit.

It is a polite number, since it can be written in 188 ways as a sum of consecutive naturals, for example, 130921866 + ... + 130921884.

Almost surely, 22487515625 is an apocalyptic number.

2487515625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2487515625 is the 49875-th square number.

2487515625 is the 24938-th centered octagonal number.

It is an amenable number.

2487515625 is an abundant number, since it is smaller than the sum of its proper divisors (3026495826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2487515625 is an frugal number, since it uses more digits than its factorization.

2487515625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 34 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The cubic root of 2487515625 is about 1354.9458500621.

The spelling of 2487515625 in words is "two billion, four hundred eighty-seven million, five hundred fifteen thousand, six hundred twenty-five".