56977229 has 2 divisors, whose sum is σ = 56977230. Its totient is φ = 56977228.

The previous prime is 56977223. The next prime is 56977237. The reversal of 56977229 is 92277965.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56280004 + 697225 = 7502^2 + 835^2 .

It is a cyclic number.

It is not a de Polignac number, because 56977229 - 2⁴ = 56977213 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56977223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28488614 + 28488615.

It is an arithmetic number, because the mean of its divisors is an integer number (28488615).

Almost surely, 2^56977229 is an apocalyptic number.

It is an amenable number.

56977229 is a deficient number, since it is larger than the sum of its proper divisors (1).

56977229 is an equidigital number, since it uses as much as digits as its factorization.

56977229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 47.

The square root of 56977229 is about 7548.3262383127. The cubic root of 56977229 is about 384.7988582203.

The spelling of 56977229 in words is "fifty-six million, nine hundred seventy-seven thousand, two hundred twenty-nine".