525423140325520 has 40 divisors (see below), whose sum is σ = 1293468142510584. Its totient is φ = 197806358710272.

The previous prime is 525423140325493. The next prime is 525423140325547. The reversal of 525423140325520 is 25523041324525.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (525423140325493) and next prime (525423140325547).

It can be written as a sum of positive squares in 4 ways, for example, as 198013078610944 + 327410061714576 = 14071712^2 + 18094476^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193170270819 + ... + 193170273538.

Almost surely, 2^{525423140325520} is an apocalyptic number.

It is an amenable number.

525423140325520 is an abundant number, since it is smaller than the sum of its proper divisors (768045002185064).

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

525423140325520 is a wasteful number, since it uses less digits than its factorization.

525423140325520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386340544387 (or 386340544381 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 43.

The spelling of 525423140325520 in words is "five hundred twenty-five trillion, four hundred twenty-three billion, one hundred forty million, three hundred twenty-five thousand, five hundred twenty".