525431004 has 48 divisors (see below), whose sum is σ = 1412210688. Its totient is φ = 148938048.

The previous prime is 525430993. The next prime is 525431009. The reversal of 525431004 is 400134525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525431009) 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, 13959 + ... + 35294.

It is an arithmetic number, because the mean of its divisors is an integer number (29421056).

Almost surely, 2^525431004 is an apocalyptic number.

It is an amenable number.

525431004 is an abundant number, since it is smaller than the sum of its proper divisors (886779684).

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

525431004 is a wasteful number, since it uses less digits than its factorization.

525431004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49394 (or 49392 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 525431004 is about 22922.2818235882. The cubic root of 525431004 is about 806.9350226916.

Adding to 525431004 its reverse (400134525), we get a palindrome (925565529).

The spelling of 525431004 in words is "five hundred twenty-five million, four hundred thirty-one thousand, four".