52168538 has 4 divisors (see below), whose sum is σ = 78252810. Its totient is φ = 26084268.

The previous prime is 52168517. The next prime is 52168553. The reversal of 52168538 is 83586125.

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

It can be written as a sum of positive squares in only one way, i.e., 51595489 + 573049 = 7183^2 + 757^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13042133 + ... + 13042136.

Almost surely, 2^52168538 is an apocalyptic number.

52168538 is a deficient number, since it is larger than the sum of its proper divisors (26084272).

52168538 is a wasteful number, since it uses less digits than its factorization.

52168538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26084271.

The product of its digits is 57600, while the sum is 38.

The square root of 52168538 is about 7222.7791050260. The cubic root of 52168538 is about 373.6539307824.

The spelling of 52168538 in words is "fifty-two million, one hundred sixty-eight thousand, five hundred thirty-eight".