56887829 has 2 divisors, whose sum is σ = 56887830. Its totient is φ = 56887828.

The previous prime is 56887801. The next prime is 56887841. The reversal of 56887829 is 92878865.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55502500 + 1385329 = 7450^2 + 1177^2 .

It is a cyclic number.

It is not a de Polignac number, because 56887829 - 2¹² = 56883733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56887849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28443914 + 28443915.

It is an arithmetic number, because the mean of its divisors is an integer number (28443915).

Almost surely, 2^56887829 is an apocalyptic number.

It is an amenable number.

56887829 is a deficient number, since it is larger than the sum of its proper divisors (1).

56887829 is an equidigital number, since it uses as much as digits as its factorization.

56887829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1935360, while the sum is 53.

The square root of 56887829 is about 7542.4020709586. The cubic root of 56887829 is about 384.5974969250.

The spelling of 56887829 in words is "fifty-six million, eight hundred eighty-seven thousand, eight hundred twenty-nine".