538399025 has 24 divisors (see below), whose sum is σ = 692437824. Its totient is φ = 414936000.

The previous prime is 538399021. The next prime is 538399031. The reversal of 538399025 is 520993835.

It is not a de Polignac number, because 538399025 - 2² = 538399021 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538399021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92450 + ... + 98100.

It is an arithmetic number, because the mean of its divisors is an integer number (28851576).

Almost surely, 2^538399025 is an apocalyptic number.

It is an amenable number.

538399025 is a deficient number, since it is larger than the sum of its proper divisors (154038799).

538399025 is a wasteful number, since it uses less digits than its factorization.

538399025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5801 (or 5796 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 44.

The square root of 538399025 is about 23203.4270098190. The cubic root of 538399025 is about 813.5197263653.

The spelling of 538399025 in words is "five hundred thirty-eight million, three hundred ninety-nine thousand, twenty-five".