57310052152621 has 4 divisors (see below), whose sum is σ = 57420052253244. Its totient is φ = 57200052052000.

The previous prime is 57310052152589. The next prime is 57310052152667. The reversal of 57310052152621 is 12625125001375.

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 24163260996996 + 33146791155625 = 4915614^2 + 5757325^2 .

It is a cyclic number.

It is not a de Polignac number, because 57310052152621 - 2⁵ = 57310052152589 is a prime.

It is a super-2 number, since 2×57310052152621² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57310055152621) 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, 55000049530 + ... + 55000050571.

It is an arithmetic number, because the mean of its divisors is an integer number (14355013063311).

Almost surely, 2^{57310052152621} is an apocalyptic number.

It is an amenable number.

57310052152621 is a deficient number, since it is larger than the sum of its proper divisors (110000100623).

57310052152621 is a wasteful number, since it uses less digits than its factorization.

57310052152621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110000100622.

The product of its (nonzero) digits is 126000, while the sum is 40.

Adding to 57310052152621 its reverse (12625125001375), we get a palindrome (69935177153996).

The spelling of 57310052152621 in words is "fifty-seven trillion, three hundred ten billion, fifty-two million, one hundred fifty-two thousand, six hundred twenty-one".