425531524 has 48 divisors (see below), whose sum is σ = 878310720. Its totient is φ = 178277760.

The previous prime is 425531521. The next prime is 425531537. The reversal of 425531524 is 425135524.

It is not an unprimeable number, because it can be changed into a prime (425531521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24054 + ... + 37810.

It is an arithmetic number, because the mean of its divisors is an integer number (18298140).

Almost surely, 2^425531524 is an apocalyptic number.

425531524 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

425531524 is an abundant number, since it is smaller than the sum of its proper divisors (452779196).

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

425531524 is a wasteful number, since it uses less digits than its factorization.

425531524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13828 (or 13826 counting only the distinct ones).

The product of its digits is 24000, while the sum is 31.

The square root of 425531524 is about 20628.4154505381. The cubic root of 425531524 is about 752.1605988105.

Adding to 425531524 its product of digits (24000), we get a palindrome (425555524).

The spelling of 425531524 in words is "four hundred twenty-five million, five hundred thirty-one thousand, five hundred twenty-four".