57126623 has 2 divisors, whose sum is σ = 57126624. Its totient is φ = 57126622.

The previous prime is 57126599. The next prime is 57126689. The reversal of 57126623 is 32662175.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57126623 - 2⁸ = 57126367 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57126623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57122623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28563311 + 28563312.

It is an arithmetic number, because the mean of its divisors is an integer number (28563312).

Almost surely, 2^57126623 is an apocalyptic number.

57126623 is a deficient number, since it is larger than the sum of its proper divisors (1).

57126623 is an equidigital number, since it uses as much as digits as its factorization.

57126623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 32.

The square root of 57126623 is about 7558.2155962899. The cubic root of 57126623 is about 385.1348782496.

Adding to 57126623 its reverse (32662175), we get a palindrome (89788798).

The spelling of 57126623 in words is "fifty-seven million, one hundred twenty-six thousand, six hundred twenty-three".