57480218561 has 8 divisors (see below), whose sum is σ = 57815470440. Its totient is φ = 57145724032.

The previous prime is 57480218513. The next prime is 57480218573. The reversal of 57480218561 is 16581208475.

It can be written as a sum of positive squares in 4 ways, for example, as 374035600 + 57106182961 = 19340^2 + 238969^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57480218561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57480418561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36746 + ... + 341043.

It is an arithmetic number, because the mean of its divisors is an integer number (7226933805).

Almost surely, 2^57480218561 is an apocalyptic number.

It is an amenable number.

57480218561 is a deficient number, since it is larger than the sum of its proper divisors (335251879).

57480218561 is a wasteful number, since it uses less digits than its factorization.

57480218561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378675.

The product of its (nonzero) digits is 537600, while the sum is 47.

The spelling of 57480218561 in words is "fifty-seven billion, four hundred eighty million, two hundred eighteen thousand, five hundred sixty-one".