57454937621 has 8 divisors (see below), whose sum is σ = 60914593944. Its totient is φ = 54004165120.

The previous prime is 57454937599. The next prime is 57454937647. The reversal of 57454937621 is 12673945475.

It can be written as a sum of positive squares in 4 ways, for example, as 204804721 + 57250132900 = 14311^2 + 239270^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 57454937621 - 2³⁴ = 40275068437 is a prime.

It is a super-2 number, since 2×57454937621² (a number of 22 digits) contains 22 as substring.

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 (57454937021) 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, 2207630 + ... + 2233503.

It is an arithmetic number, because the mean of its divisors is an integer number (7614324243).

Almost surely, 2^57454937621 is an apocalyptic number.

It is an amenable number.

57454937621 is a deficient number, since it is larger than the sum of its proper divisors (3459656323).

57454937621 is a wasteful number, since it uses less digits than its factorization.

57454937621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4441911.

The product of its digits is 6350400, while the sum is 53.

The spelling of 57454937621 in words is "fifty-seven billion, four hundred fifty-four million, nine hundred thirty-seven thousand, six hundred twenty-one".