2525665536 has 135 divisors (see below), whose sum is σ = 7552718481. Its totient is φ = 839476224.

The previous prime is 2525665531. The next prime is 2525665543. The reversal of 2525665536 is 6355665252.

The square root of 2525665536 is 50256.

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

2525665536 is a `hidden beast` number, since 2 + 5 + 2 + 56 + 65 + 536 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1853819136 + 671846400 = 43056^2 + 25920^2 .

It is a super-3 number, since 3×2525665536³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2525665491 and 2525665500.

It is not an unprimeable number, because it can be changed into a prime (2525665531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 7236690 + ... + 7237038.

Almost surely, 2^2525665536 is an apocalyptic number.

2525665536 is the 50256-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2525665536

2525665536 is an abundant number, since it is smaller than the sum of its proper divisors (5027052945).

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

2525665536 is an frugal number, since it uses more digits than its factorization.

2525665536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726 (or 354 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 45.

The cubic root of 2525665536 is about 1361.8374701748.

The spelling of 2525665536 in words is "two billion, five hundred twenty-five million, six hundred sixty-five thousand, five hundred thirty-six".