525556655525 has 12 divisors (see below), whose sum is σ = 710934821664. Its totient is φ = 382223022000.

The previous prime is 525556655473. The next prime is 525556655549.

It is a happy number.

525556655525 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 525556655525 - 2⁶ = 525556655461 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 955557281 + ... + 955557830.

It is an arithmetic number, because the mean of its divisors is an integer number (59244568472).

Almost surely, 2^525556655525 is an apocalyptic number.

525556655525 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

525556655525 is a deficient number, since it is larger than the sum of its proper divisors (185378166139).

525556655525 is a wasteful number, since it uses less digits than its factorization.

525556655525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911115132 (or 1911115127 counting only the distinct ones).

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

The spelling of 525556655525 in words is "five hundred twenty-five billion, five hundred fifty-six million, six hundred fifty-five thousand, five hundred twenty-five".