57952204621 has 4 divisors (see below), whose sum is σ = 61361157852. Its totient is φ = 54543251392.

The previous prime is 57952204613. The next prime is 57952204631. The reversal of 57952204621 is 12640225975.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48521075625 + 9431128996 = 220275^2 + 97114^2 .

It is a cyclic number.

It is not a de Polignac number, because 57952204621 - 2³ = 57952204613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57952204631) 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, 1704476590 + ... + 1704476623.

It is an arithmetic number, because the mean of its divisors is an integer number (15340289463).

Almost surely, 2^57952204621 is an apocalyptic number.

It is an amenable number.

57952204621 is a deficient number, since it is larger than the sum of its proper divisors (3408953231).

57952204621 is a wasteful number, since it uses less digits than its factorization.

57952204621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3408953230.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 57952204621 in words is "fifty-seven billion, nine hundred fifty-two million, two hundred four thousand, six hundred twenty-one".