57513623 has 2 divisors, whose sum is σ = 57513624. Its totient is φ = 57513622.

The previous prime is 57513619. The next prime is 57513637. The reversal of 57513623 is 32631575.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57513623 - 2² = 57513619 is a prime.

It is a super-2 number, since 2×57513623² = 6615633661172258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57513623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57513923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28756811 + 28756812.

It is an arithmetic number, because the mean of its divisors is an integer number (28756812).

Almost surely, 2^57513623 is an apocalyptic number.

57513623 is a deficient number, since it is larger than the sum of its proper divisors (1).

57513623 is an equidigital number, since it uses as much as digits as its factorization.

57513623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 32.

The square root of 57513623 is about 7583.7736648716. The cubic root of 57513623 is about 386.0026107907.

The spelling of 57513623 in words is "fifty-seven million, five hundred thirteen thousand, six hundred twenty-three".