57551013 has 32 divisors (see below), whose sum is σ = 92695680. Its totient is φ = 35078400.

The previous prime is 57550963. The next prime is 57551023. The reversal of 57551013 is 31015575.

57551013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57551013 - 2¹² = 57546917 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57551023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38938 + ... + 40388.

It is an arithmetic number, because the mean of its divisors is an integer number (2896740).

Almost surely, 2^57551013 is an apocalyptic number.

It is an amenable number.

57551013 is a deficient number, since it is larger than the sum of its proper divisors (35144667).

57551013 is a wasteful number, since it uses less digits than its factorization.

57551013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586 (or 1580 counting only the distinct ones).

The product of its (nonzero) digits is 2625, while the sum is 27.

The square root of 57551013 is about 7586.2383959377. The cubic root of 57551013 is about 386.0862403171.

Adding to 57551013 its reverse (31015575), we get a palindrome (88566588).

The spelling of 57551013 in words is "fifty-seven million, five hundred fifty-one thousand, thirteen".