57320080 has 20 divisors (see below), whose sum is σ = 133269372. Its totient is φ = 22928000.

The previous prime is 57320059. The next prime is 57320101. The reversal of 57320080 is 8002375.

It is an interprime number because it is at equal distance from previous prime (57320059) and next prime (57320101).

It can be written as a sum of positive squares in 2 ways, for example, as 34433424 + 22886656 = 5868^2 + 4784^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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 3 ways as a sum of consecutive naturals, for example, 358171 + ... + 358330.

Almost surely, 2^57320080 is an apocalyptic number.

It is an amenable number.

57320080 is an abundant number, since it is smaller than the sum of its proper divisors (75949292).

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

57320080 is a wasteful number, since it uses less digits than its factorization.

57320080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716514 (or 716508 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 57320080 is about 7571.0025756170. The cubic root of 57320080 is about 385.5691363186.

The spelling of 57320080 in words is "fifty-seven million, three hundred twenty thousand, eighty".