57040061 has 16 divisors (see below), whose sum is σ = 63598080. Its totient is φ = 50820480.

The previous prime is 57040043. The next prime is 57040073. The reversal of 57040061 is 16004075.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57040061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57040021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54380 + ... + 55418.

It is an arithmetic number, because the mean of its divisors is an integer number (3974880).

Almost surely, 2^57040061 is an apocalyptic number.

It is an amenable number.

57040061 is a deficient number, since it is larger than the sum of its proper divisors (6558019).

57040061 is a wasteful number, since it uses less digits than its factorization.

57040061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 57040061 is about 7552.4870738056. The cubic root of 57040061 is about 384.9402527175.

The spelling of 57040061 in words is "fifty-seven million, forty thousand, sixty-one".