52639776 has 72 divisors (see below), whose sum is σ = 171085824. Its totient is φ = 15039360.

The previous prime is 52639757. The next prime is 52639817. The reversal of 52639776 is 67793625.

52639776 is a `hidden beast` number, since 5 + 2 + 639 + 7 + 7 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11040 + ... + 15071.

It is an arithmetic number, because the mean of its divisors is an integer number (2376192).

Almost surely, 2^52639776 is an apocalyptic number.

52639776 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

52639776 is an abundant number, since it is smaller than the sum of its proper divisors (118446048).

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

52639776 is a wasteful number, since it uses less digits than its factorization.

52639776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26134 (or 26123 counting only the distinct ones).

The product of its digits is 476280, while the sum is 45.

The square root of 52639776 is about 7255.3274219707. The cubic root of 52639776 is about 374.7756311164.

The spelling of 52639776 in words is "fifty-two million, six hundred thirty-nine thousand, seven hundred seventy-six".