525500505025 has 6 divisors (see below), whose sum is σ = 651620626262. Its totient is φ = 420400404000.

The previous prime is 525500505017. The next prime is 525500505029. The reversal of 525500505025 is 520505005525.

It can be written as a sum of positive squares in 3 ways, for example, as 18475333776 + 507025171249 = 135924^2 + 712057^2 .

It is not a de Polignac number, because 525500505025 - 2³ = 525500505017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525500505029) 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, 10510010076 + ... + 10510010125.

Almost surely, 2^525500505025 is an apocalyptic number.

It is an amenable number.

525500505025 is a deficient number, since it is larger than the sum of its proper divisors (126120121237).

525500505025 is a wasteful number, since it uses less digits than its factorization.

525500505025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21020020211 (or 21020020206 counting only the distinct ones).

The product of its (nonzero) digits is 62500, while the sum is 34.

The spelling of 525500505025 in words is "five hundred twenty-five billion, five hundred million, five hundred five thousand, twenty-five".