525431402 has 8 divisors (see below), whose sum is σ = 789067200. Its totient is φ = 262409004.

The previous prime is 525431399. The next prime is 525431411. The reversal of 525431402 is 204134525.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151202 + ... + 154637.

It is an arithmetic number, because the mean of its divisors is an integer number (98633400).

Almost surely, 2^525431402 is an apocalyptic number.

525431402 is a deficient number, since it is larger than the sum of its proper divisors (263635798).

525431402 is a wasteful number, since it uses less digits than its factorization.

525431402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306700.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 525431402 is about 22922.2905050957. The cubic root of 525431402 is about 806.9352264355.

Adding to 525431402 its reverse (204134525), we get a palindrome (729565927).

The spelling of 525431402 in words is "five hundred twenty-five million, four hundred thirty-one thousand, four hundred two".