57040623 has 6 divisors (see below), whose sum is σ = 82392024. Its totient is φ = 38027076.

The previous prime is 57040609. The next prime is 57040639. The reversal of 57040623 is 32604075.

It is a happy number.

It is not a de Polignac number, because 57040623 - 2⁵ = 57040591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57040693) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3168915 + ... + 3168932.

It is an arithmetic number, because the mean of its divisors is an integer number (13732004).

Almost surely, 2^57040623 is an apocalyptic number.

57040623 is a deficient number, since it is larger than the sum of its proper divisors (25351401).

57040623 is a wasteful number, since it uses less digits than its factorization.

57040623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6337853 (or 6337850 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 57040623 is about 7552.5242800007. The cubic root of 57040623 is about 384.9415169501.

Adding to 57040623 its reverse (32604075), we get a palindrome (89644698).

It can be divided in two parts, 5 and 7040623, that added together give a triangular number (7040628 = T₃₇₅₂).

The spelling of 57040623 in words is "fifty-seven million, forty thousand, six hundred twenty-three".