57631749 has 16 divisors (see below), whose sum is σ = 87951360. Its totient is φ = 32883120.

The previous prime is 57631733. The next prime is 57631753. The reversal of 57631749 is 94713675.

57631749 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 57631749 - 2⁴ = 57631733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57631749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57631799) 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 15 ways as a sum of consecutive naturals, for example, 15984 + ... + 19254.

It is an arithmetic number, because the mean of its divisors is an integer number (5496960).

Almost surely, 2^57631749 is an apocalyptic number.

It is an amenable number.

57631749 is a deficient number, since it is larger than the sum of its proper divisors (30319611).

57631749 is a wasteful number, since it uses less digits than its factorization.

57631749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4120.

The product of its digits is 158760, while the sum is 42.

The square root of 57631749 is about 7591.5577452852. The cubic root of 57631749 is about 386.2666975742.

The spelling of 57631749 in words is "fifty-seven million, six hundred thirty-one thousand, seven hundred forty-nine".