56451929 has 2 divisors, whose sum is σ = 56451930. Its totient is φ = 56451928.

The previous prime is 56451911. The next prime is 56451977. The reversal of 56451929 is 92915465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31899904 + 24552025 = 5648^2 + 4955^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56451929 is a prime.

It is not a weakly prime, because it can be changed into another prime (56451979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28225964 + 28225965.

It is an arithmetic number, because the mean of its divisors is an integer number (28225965).

Almost surely, 2^56451929 is an apocalyptic number.

It is an amenable number.

56451929 is a deficient number, since it is larger than the sum of its proper divisors (1).

56451929 is an equidigital number, since it uses as much as digits as its factorization.

56451929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 41.

The square root of 56451929 is about 7513.4498733937. The cubic root of 56451929 is about 383.6126578301.

The spelling of 56451929 in words is "fifty-six million, four hundred fifty-one thousand, nine hundred twenty-nine".