56257829 has 2 divisors, whose sum is σ = 56257830. Its totient is φ = 56257828.

The previous prime is 56257801. The next prime is 56257849. The reversal of 56257829 is 92875265.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51868804 + 4389025 = 7202^2 + 2095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56257829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56257829.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56257849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28128914 + 28128915.

It is an arithmetic number, because the mean of its divisors is an integer number (28128915).

Almost surely, 2^56257829 is an apocalyptic number.

It is an amenable number.

56257829 is a deficient number, since it is larger than the sum of its proper divisors (1).

56257829 is an equidigital number, since it uses as much as digits as its factorization.

56257829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 44.

The square root of 56257829 is about 7500.5219151736. The cubic root of 56257829 is about 383.1724914804.

The spelling of 56257829 in words is "fifty-six million, two hundred fifty-seven thousand, eight hundred twenty-nine".