56951879 has 2 divisors, whose sum is σ = 56951880. Its totient is φ = 56951878.

The previous prime is 56951863. The next prime is 56951897. The reversal of 56951879 is 97815965.

It is a happy number.

Together with next prime (56951897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56951879 - 2⁴ = 56951863 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56651879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28475939 + 28475940.

It is an arithmetic number, because the mean of its divisors is an integer number (28475940).

Almost surely, 2^56951879 is an apocalyptic number.

56951879 is a deficient number, since it is larger than the sum of its proper divisors (1).

56951879 is an equidigital number, since it uses as much as digits as its factorization.

56951879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 680400, while the sum is 50.

The square root of 56951879 is about 7546.6468712932. The cubic root of 56951879 is about 384.7417822139.

The spelling of 56951879 in words is "fifty-six million, nine hundred fifty-one thousand, eight hundred seventy-nine".