52445538 has 12 divisors (see below), whose sum is σ = 113632038. Its totient is φ = 17481840.

The previous prime is 52445531. The next prime is 52445551. The reversal of 52445538 is 83554425.

It can be written as a sum of positive squares in only one way, i.e., 45927729 + 6517809 = 6777^2 + 2553^2 .

It is a super-2 number, since 2×52445538² = 5501068912218888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52445531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1456803 + ... + 1456838.

Almost surely, 2^52445538 is an apocalyptic number.

52445538 is an abundant number, since it is smaller than the sum of its proper divisors (61186500).

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

52445538 is a wasteful number, since it uses less digits than its factorization.

52445538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2913649 (or 2913646 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The square root of 52445538 is about 7241.9291628681. The cubic root of 52445538 is about 374.3140955250.

The spelling of 52445538 in words is "fifty-two million, four hundred forty-five thousand, five hundred thirty-eight".