57421616 has 40 divisors (see below), whose sum is σ = 132681984. Its totient is φ = 23538240.

The previous prime is 57421603. The next prime is 57421627. The reversal of 57421616 is 61612475.

57421616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 8570 + ... + 13721.

Almost surely, 2^57421616 is an apocalyptic number.

57421616 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

57421616 is an abundant number, since it is smaller than the sum of its proper divisors (75260368).

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

57421616 is a wasteful number, since it uses less digits than its factorization.

57421616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22329 (or 22323 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 57421616 is about 7577.7051935266. The cubic root of 57421616 is about 385.7966659759.

The spelling of 57421616 in words is "fifty-seven million, four hundred twenty-one thousand, six hundred sixteen".