52139416 has 32 divisors (see below), whose sum is σ = 111998880. Its totient is φ = 22291200.

The previous prime is 52139411. The next prime is 52139429. The reversal of 52139416 is 61493125.

52139416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52139411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29436 + ... + 31156.

It is an arithmetic number, because the mean of its divisors is an integer number (3499965).

Almost surely, 2^52139416 is an apocalyptic number.

52139416 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

52139416 is an abundant number, since it is smaller than the sum of its proper divisors (59859464).

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

52139416 is a wasteful number, since it uses less digits than its factorization.

52139416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2275 (or 2271 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 52139416 is about 7220.7628405869. The cubic root of 52139416 is about 373.5843896655.

The spelling of 52139416 in words is "fifty-two million, one hundred thirty-nine thousand, four hundred sixteen".