57553785493 has 8 divisors (see below), whose sum is σ = 58978673208. Its totient is φ = 56141452224.

The previous prime is 57553785491. The next prime is 57553785503. The reversal of 57553785493 is 39458735575.

57553785493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 35065184049 + 22488601444 = 187257^2 + 149962^2 .

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 57553785493 - 2¹ = 57553785491 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 (57553785491) 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, 3129330 + ... + 3147667.

It is an arithmetic number, because the mean of its divisors is an integer number (7372334151).

Almost surely, 2^57553785493 is an apocalyptic number.

57553785493 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

57553785493 is a deficient number, since it is larger than the sum of its proper divisors (1424887715).

57553785493 is a wasteful number, since it uses less digits than its factorization.

57553785493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6277223.

The product of its digits is 79380000, while the sum is 61.

The spelling of 57553785493 in words is "fifty-seven billion, five hundred fifty-three million, seven hundred eighty-five thousand, four hundred ninety-three".