525556655523 has 6 divisors (see below), whose sum is σ = 759137391324. Its totient is φ = 350371103676.

The previous prime is 525556655473. The next prime is 525556655549. The reversal of 525556655523 is 325556655525.

525556655523 is a `hidden beast` number, since 5 + 2 + 5 + 5 + 5 + 66 + 55 + 523 = 666.

It is not a de Polignac number, because 525556655523 - 2⁹ = 525556655011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 525556655523.

It is not an unprimeable number, because it can be changed into a prime (525556655423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29197591965 + ... + 29197591982.

It is an arithmetic number, because the mean of its divisors is an integer number (126522898554).

Almost surely, 2^525556655523 is an apocalyptic number.

525556655523 is a deficient number, since it is larger than the sum of its proper divisors (233580735801).

525556655523 is a wasteful number, since it uses less digits than its factorization.

525556655523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58395183953 (or 58395183950 counting only the distinct ones).

The product of its digits is 33750000, while the sum is 54.

The spelling of 525556655523 in words is "five hundred twenty-five billion, five hundred fifty-six million, six hundred fifty-five thousand, five hundred twenty-three".