57791481 has 16 divisors (see below), whose sum is σ = 84235008. Its totient is φ = 34952400.

The previous prime is 57791431. The next prime is 57791507. The reversal of 57791481 is 18419775.

It is not a de Polignac number, because 57791481 - 2⁶ = 57791417 is a prime.

It is a super-2 number, since 2×57791481² = 6679710552346722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57791401) 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, 17310 + ... + 20376.

It is an arithmetic number, because the mean of its divisors is an integer number (5264688).

Almost surely, 2^57791481 is an apocalyptic number.

It is an amenable number.

57791481 is a deficient number, since it is larger than the sum of its proper divisors (26443527).

57791481 is a wasteful number, since it uses less digits than its factorization.

57791481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3652.

The product of its digits is 70560, while the sum is 42.

The square root of 57791481 is about 7602.0708362919. The cubic root of 57791481 is about 386.6232269703.

It can be divided in two parts, 5779 and 1481, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 57791481 in words is "fifty-seven million, seven hundred ninety-one thousand, four hundred eighty-one".