57480571581 has 16 divisors (see below), whose sum is σ = 82126747584. Its totient is φ = 35631705344.

The previous prime is 57480571573. The next prime is 57480571607. The reversal of 57480571581 is 18517508475.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 57480571581 - 2³ = 57480571573 is a prime.

It is a super-2 number, since 2×57480571581² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57480571531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6785346 + ... + 6793811.

It is an arithmetic number, because the mean of its divisors is an integer number (5132921724).

Almost surely, 2^57480571581 is an apocalyptic number.

57480571581 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

57480571581 is a deficient number, since it is larger than the sum of its proper divisors (24646176003).

57480571581 is a wasteful number, since it uses less digits than its factorization.

57480571581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13579260.

The product of its (nonzero) digits is 1568000, while the sum is 51.

The spelling of 57480571581 in words is "fifty-seven billion, four hundred eighty million, five hundred seventy-one thousand, five hundred eighty-one".