57621480 has 64 divisors (see below), whose sum is σ = 197562240. Its totient is φ = 13170432.

The previous prime is 57621479. The next prime is 57621481. The reversal of 57621480 is 8412675.

It is an interprime number because it is at equal distance from previous prime (57621479) and next prime (57621481).

It is not an unprimeable number, because it can be changed into a prime (57621481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33459 + ... + 35138.

It is an arithmetic number, because the mean of its divisors is an integer number (3086910).

Almost surely, 2^57621480 is an apocalyptic number.

It is an amenable number.

57621480 is an abundant number, since it is smaller than the sum of its proper divisors (139940760).

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

57621480 is a wasteful number, since it uses less digits than its factorization.

57621480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68618 (or 68614 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 57621480 is about 7590.8813717512. The cubic root of 57621480 is about 386.2437541538.

The spelling of 57621480 in words is "fifty-seven million, six hundred twenty-one thousand, four hundred eighty".