52052138 has 4 divisors (see below), whose sum is σ = 78078210. Its totient is φ = 26026068.

The previous prime is 52052137. The next prime is 52052141. The reversal of 52052138 is 83125025.

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., 41049649 + 11002489 = 6407^2 + 3317^2 .

It is not an unprimeable number, because it can be changed into a prime (52052137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13013033 + ... + 13013036.

Almost surely, 2^52052138 is an apocalyptic number.

52052138 is a deficient number, since it is larger than the sum of its proper divisors (26026072).

52052138 is a wasteful number, since it uses less digits than its factorization.

52052138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26026071.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 52052138 is about 7214.7167650574. The cubic root of 52052138 is about 373.3758212344.

The spelling of 52052138 in words is "fifty-two million, fifty-two thousand, one hundred thirty-eight".