61572008 has 32 divisors (see below), whose sum is σ = 123832800. Its totient is φ = 28611648.

The previous prime is 61571999. The next prime is 61572019. The reversal of 61572008 is 80027516.

61572008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61572008² = 7582224338304128, which contains 22 as substring.

It is an unprimeable number.

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, 4235 + ... + 11877.

It is an arithmetic number, because the mean of its divisors is an integer number (3869775).

Almost surely, 2^61572008 is an apocalyptic number.

It is an amenable number.

61572008 is an abundant number, since it is smaller than the sum of its proper divisors (62260792).

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

61572008 is a wasteful number, since it uses less digits than its factorization.

61572008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7721 (or 7717 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 61572008 is about 7846.7832899858. The cubic root of 61572008 is about 394.8763336629.

The spelling of 61572008 in words is "sixty-one million, five hundred seventy-two thousand, eight".