57016980 has 96 divisors (see below), whose sum is σ = 187850880. Its totient is φ = 14307840.

The previous prime is 57016979. The next prime is 57017021. The reversal of 57016980 is 8961075.

57016980 is a `hidden beast` number, since 570 + 1 + 6 + 9 + 80 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6075 + ... + 12285.

It is an arithmetic number, because the mean of its divisors is an integer number (1956780).

Almost surely, 2^57016980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57016980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93925440).

57016980 is an abundant number, since it is smaller than the sum of its proper divisors (130833900).

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

57016980 is a wasteful number, since it uses less digits than its factorization.

57016980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6246 (or 6238 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 57016980 is about 7550.9588795066. The cubic root of 57016980 is about 384.8883242747. Note that the first 3 decimals are identical.

The spelling of 57016980 in words is "fifty-seven million, sixteen thousand, nine hundred eighty".