57656429 has 2 divisors, whose sum is σ = 57656430. Its totient is φ = 57656428.

The previous prime is 57656419. The next prime is 57656441. The reversal of 57656429 is 92465675.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56595529 + 1060900 = 7523^2 + 1030^2 .

It is a cyclic number.

It is not a de Polignac number, because 57656429 - 2¹² = 57652333 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57656429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57656419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28828214 + 28828215.

It is an arithmetic number, because the mean of its divisors is an integer number (28828215).

Almost surely, 2^57656429 is an apocalyptic number.

It is an amenable number.

57656429 is a deficient number, since it is larger than the sum of its proper divisors (1).

57656429 is an equidigital number, since it uses as much as digits as its factorization.

57656429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 453600, while the sum is 44.

The square root of 57656429 is about 7593.1830611411. The cubic root of 57656429 is about 386.3218274969.

It can be divided in two parts, 57656 and 429, that added together give a palindrome (58085).

The spelling of 57656429 in words is "fifty-seven million, six hundred fifty-six thousand, four hundred twenty-nine".