57161013 has 16 divisors (see below), whose sum is σ = 93803136. Its totient is φ = 30150720.

The previous prime is 57161009. The next prime is 57161023. The reversal of 57161013 is 31016175.

57161013 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 57161013 - 2² = 57161009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57161023) 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, 104418 + ... + 104963.

It is an arithmetic number, because the mean of its divisors is an integer number (5862696).

Almost surely, 2^57161013 is an apocalyptic number.

It is an amenable number.

57161013 is a deficient number, since it is larger than the sum of its proper divisors (36642123).

57161013 is a wasteful number, since it uses less digits than its factorization.

57161013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209404.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 57161013 is about 7560.4902618812. The cubic root of 57161013 is about 385.2121459687.

Adding to 57161013 its reverse (31016175), we get a palindrome (88177188).

The spelling of 57161013 in words is "fifty-seven million, one hundred sixty-one thousand, thirteen".