57513613421 has 32 divisors (see below), whose sum is σ = 65395382400. Its totient is φ = 50102599680.

The previous prime is 57513613387. The next prime is 57513613433. The reversal of 57513613421 is 12431631575.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 57513613421 - 2¹⁰ = 57513612397 is a prime.

It is a super-3 number, since 3×57513613421³ (a number of 33 digits) contains 333 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 (57513613021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35523350 + ... + 35524968.

It is an arithmetic number, because the mean of its divisors is an integer number (2043605700).

Almost surely, 2^57513613421 is an apocalyptic number.

It is an amenable number.

57513613421 is a deficient number, since it is larger than the sum of its proper divisors (7881768979).

57513613421 is a wasteful number, since it uses less digits than its factorization.

57513613421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429.

The product of its digits is 75600, while the sum is 38.

The spelling of 57513613421 in words is "fifty-seven billion, five hundred thirteen million, six hundred thirteen thousand, four hundred twenty-one".