57082515533 has 4 divisors (see below), whose sum is σ = 57770256768. Its totient is φ = 56394774300.

The previous prime is 57082515467. The next prime is 57082515547. The reversal of 57082515533 is 33551528075.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57082515533 - 2⁸ = 57082515277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57082115533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343870493 + ... + 343870658.

It is an arithmetic number, because the mean of its divisors is an integer number (14442564192).

Almost surely, 2^57082515533 is an apocalyptic number.

It is an amenable number.

57082515533 is a deficient number, since it is larger than the sum of its proper divisors (687741235).

57082515533 is an equidigital number, since it uses as much as digits as its factorization.

57082515533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687741234.

The product of its (nonzero) digits is 630000, while the sum is 44.

The spelling of 57082515533 in words is "fifty-seven billion, eighty-two million, five hundred fifteen thousand, five hundred thirty-three".