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53288225 = 5229312371
BaseRepresentation
bin1100101101000…
…1110100100001
310201021022200222
43023101310201
5102120210400
65142052425
71214641154
oct313216441
9121238628
1053288225
1128097261
1215a1a115
13b069cc3
147111c9b
154a29185
hex32d1d21

53288225 has 24 divisors (see below), whose sum is σ = 70590720. Its totient is φ = 39816000.

The previous prime is 53288189. The next prime is 53288227. The reversal of 53288225 is 52288235.

It is not a de Polignac number, because 53288225 - 212 = 53284129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53288227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21290 + ... + 23660.

It is an arithmetic number, because the mean of its divisors is an integer number (2941280).

Almost surely, 253288225 is an apocalyptic number.

It is an amenable number.

53288225 is a deficient number, since it is larger than the sum of its proper divisors (17302495).

53288225 is a wasteful number, since it uses less digits than its factorization.

53288225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441 (or 2436 counting only the distinct ones).

The product of its digits is 38400, while the sum is 35.

The square root of 53288225 is about 7299.8784236451. The cubic root of 53288225 is about 376.3082602027.

The spelling of 53288225 in words is "fifty-three million, two hundred eighty-eight thousand, two hundred twenty-five".

Divisors: 1 5 25 29 31 145 155 725 775 899 2371 4495 11855 22475 59275 68759 73501 343795 367505 1718975 1837525 2131529 10657645 53288225