525429238 has 4 divisors (see below), whose sum is σ = 788143860. Its totient is φ = 262714618.

The previous prime is 525429197. The next prime is 525429263. The reversal of 525429238 is 832924525.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 525429238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131357308 + ... + 131357311.

It is an arithmetic number, because the mean of its divisors is an integer number (197035965).

Almost surely, 2^525429238 is an apocalyptic number.

525429238 is a deficient number, since it is larger than the sum of its proper divisors (262714622).

525429238 is a wasteful number, since it uses less digits than its factorization.

525429238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262714621.

The product of its digits is 172800, while the sum is 40.

The square root of 525429238 is about 22922.2433020854. The cubic root of 525429238 is about 806.9341186409.

The spelling of 525429238 in words is "five hundred twenty-five million, four hundred twenty-nine thousand, two hundred thirty-eight".