52432138 has 16 divisors (see below), whose sum is σ = 85974624. Its totient is φ = 23783760.

The previous prime is 52432109. The next prime is 52432169. The reversal of 52432138 is 83123425.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9856 + ... + 14212.

It is an arithmetic number, because the mean of its divisors is an integer number (5373414).

Almost surely, 2^52432138 is an apocalyptic number.

52432138 is a deficient number, since it is larger than the sum of its proper divisors (33542486).

52432138 is a wasteful number, since it uses less digits than its factorization.

52432138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4917.

The product of its digits is 5760, while the sum is 28.

The square root of 52432138 is about 7241.0039359194. The cubic root of 52432138 is about 374.2822133331.

It can be divided in two parts, 5243 and 2138, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 52432138 in words is "fifty-two million, four hundred thirty-two thousand, one hundred thirty-eight".