425524055531 has 4 divisors (see below), whose sum is σ = 425533297752. Its totient is φ = 425514813312.

The previous prime is 425524055527. The next prime is 425524055533. The reversal of 425524055531 is 135550425524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 425524055531 - 2² = 425524055527 is a prime.

It is a super-2 number, since 2×425524055531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425524055533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4551701 + ... + 4644246.

It is an arithmetic number, because the mean of its divisors is an integer number (106383324438).

Almost surely, 2^425524055531 is an apocalyptic number.

425524055531 is a deficient number, since it is larger than the sum of its proper divisors (9242221).

425524055531 is an equidigital number, since it uses as much as digits as its factorization.

425524055531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9242220.

The product of its (nonzero) digits is 600000, while the sum is 41.

The spelling of 425524055531 in words is "four hundred twenty-five billion, five hundred twenty-four million, fifty-five thousand, five hundred thirty-one".