56931829 has 2 divisors, whose sum is σ = 56931830. Its totient is φ = 56931828.

The previous prime is 56931767. The next prime is 56931851. The reversal of 56931829 is 92813965.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55726225 + 1205604 = 7465^2 + 1098^2 .

It is a cyclic number.

It is not a de Polignac number, because 56931829 - 2⁷ = 56931701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56931859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28465914 + 28465915.

It is an arithmetic number, because the mean of its divisors is an integer number (28465915).

Almost surely, 2^56931829 is an apocalyptic number.

It is an amenable number.

56931829 is a deficient number, since it is larger than the sum of its proper divisors (1).

56931829 is an equidigital number, since it uses as much as digits as its factorization.

56931829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 43.

The square root of 56931829 is about 7545.3183498114. The cubic root of 56931829 is about 384.6966272614.

The spelling of 56931829 in words is "fifty-six million, nine hundred thirty-one thousand, eight hundred twenty-nine".