52639392 has 48 divisors (see below), whose sum is σ = 148811040. Its totient is φ = 16196352.

The previous prime is 52639369. The next prime is 52639403. The reversal of 52639392 is 29393625.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 52639392.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19842 + ... + 22337.

It is an arithmetic number, because the mean of its divisors is an integer number (3100230).

Almost surely, 2^52639392 is an apocalyptic number.

52639392 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

52639392 is an abundant number, since it is smaller than the sum of its proper divisors (96171648).

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

52639392 is a wasteful number, since it uses less digits than its factorization.

52639392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42205 (or 42197 counting only the distinct ones).

The product of its digits is 87480, while the sum is 39.

The square root of 52639392 is about 7255.3009586095. The cubic root of 52639392 is about 374.7747198018.

The spelling of 52639392 in words is "fifty-two million, six hundred thirty-nine thousand, three hundred ninety-two".