525389538 has 8 divisors (see below), whose sum is σ = 1050779088. Its totient is φ = 175129844.

The previous prime is 525389497. The next prime is 525389567. The reversal of 525389538 is 835983525.

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

525389538 is an admirable number.

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, 43782456 + ... + 43782467.

It is an arithmetic number, because the mean of its divisors is an integer number (131347386).

Almost surely, 2^525389538 is an apocalyptic number.

525389538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

525389538 is a wasteful number, since it uses less digits than its factorization.

525389538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87564928.

The product of its digits is 1296000, while the sum is 48.

The square root of 525389538 is about 22921.3773146380. The cubic root of 525389538 is about 806.9137948820.

The spelling of 525389538 in words is "five hundred twenty-five million, three hundred eighty-nine thousand, five hundred thirty-eight".