57765623 has 2 divisors, whose sum is σ = 57765624. Its totient is φ = 57765622.

The previous prime is 57765611. The next prime is 57765647. The reversal of 57765623 is 32656775.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57765623 - 2⁶ = 57765559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57765223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28882811 + 28882812.

It is an arithmetic number, because the mean of its divisors is an integer number (28882812).

Almost surely, 2^57765623 is an apocalyptic number.

57765623 is a deficient number, since it is larger than the sum of its proper divisors (1).

57765623 is an equidigital number, since it uses as much as digits as its factorization.

57765623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 264600, while the sum is 41.

The square root of 57765623 is about 7600.3699252076. The cubic root of 57765623 is about 386.5655552936.

The spelling of 57765623 in words is "fifty-seven million, seven hundred sixty-five thousand, six hundred twenty-three".