525655556525 has 48 divisors (see below), whose sum is σ = 717090442560. Its totient is φ = 379069286400.

The previous prime is 525655556497. The next prime is 525655556549.

It is a happy number.

525655556525 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 525655556525 - 2²² = 525651362221 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18016349 + ... + 18045501.

It is an arithmetic number, because the mean of its divisors is an integer number (14939384220).

Almost surely, 2^525655556525 is an apocalyptic number.

525655556525 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

525655556525 is a deficient number, since it is larger than the sum of its proper divisors (191434886035).

525655556525 is a wasteful number, since it uses less digits than its factorization.

525655556525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29726 (or 29721 counting only the distinct ones).

The product of its digits is 56250000, while the sum is 56.

The spelling of 525655556525 in words is "five hundred twenty-five billion, six hundred fifty-five million, five hundred fifty-six thousand, five hundred twenty-five".