52139084 has 12 divisors (see below), whose sum is σ = 91294224. Its totient is φ = 26055024.

The previous prime is 52139083. The next prime is 52139089. The reversal of 52139084 is 48093125.

It is a self number, because there is not a number n which added to its sum of digits gives 52139084.

It is not an unprimeable number, because it can be changed into a prime (52139081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11009 + ... + 15015.

It is an arithmetic number, because the mean of its divisors is an integer number (7607852).

Almost surely, 2^52139084 is an apocalyptic number.

It is an amenable number.

52139084 is a deficient number, since it is larger than the sum of its proper divisors (39155140).

52139084 is a wasteful number, since it uses less digits than its factorization.

52139084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7264 (or 7262 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 52139084 is about 7220.7398512895. The cubic root of 52139084 is about 373.5835967255.

The spelling of 52139084 in words is "fifty-two million, one hundred thirty-nine thousand, eighty-four".