57280478 has 16 divisors (see below), whose sum is σ = 90616320. Its totient is φ = 27080856.

The previous prime is 57280469. The next prime is 57280513. The reversal of 57280478 is 87408275.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24851 + ... + 27057.

It is an arithmetic number, because the mean of its divisors is an integer number (5663520).

Almost surely, 2^57280478 is an apocalyptic number.

57280478 is a deficient number, since it is larger than the sum of its proper divisors (33335842).

57280478 is a wasteful number, since it uses less digits than its factorization.

57280478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2911.

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 57280478 is about 7568.3867501602. The cubic root of 57280478 is about 385.4803202832.

The spelling of 57280478 in words is "fifty-seven million, two hundred eighty thousand, four hundred seventy-eight".