57649071 has 16 divisors (see below), whose sum is σ = 81669600. Its totient is φ = 36102528.

The previous prime is 57649069. The next prime is 57649079. The reversal of 57649071 is 17094675.

It is not a de Polignac number, because 57649071 - 2¹ = 57649069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57649079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5736 + ... + 12173.

It is an arithmetic number, because the mean of its divisors is an integer number (5104350).

Almost surely, 2^57649071 is an apocalyptic number.

57649071 is a deficient number, since it is larger than the sum of its proper divisors (24020529).

57649071 is a wasteful number, since it uses less digits than its factorization.

57649071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17978.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 57649071 is about 7592.6985321426. The cubic root of 57649071 is about 386.3053929207.

The spelling of 57649071 in words is "fifty-seven million, six hundred forty-nine thousand, seventy-one".