56406751 has 2 divisors, whose sum is σ = 56406752. Its totient is φ = 56406750.

The previous prime is 56406739. The next prime is 56406767. The reversal of 56406751 is 15760465.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56406751 - 2¹¹ = 56404703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56406851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28203375 + 28203376.

It is an arithmetic number, because the mean of its divisors is an integer number (28203376).

Almost surely, 2^56406751 is an apocalyptic number.

56406751 is a deficient number, since it is larger than the sum of its proper divisors (1).

56406751 is an equidigital number, since it uses as much as digits as its factorization.

56406751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 56406751 is about 7510.4427965334. The cubic root of 56406751 is about 383.5102965334.

The spelling of 56406751 in words is "fifty-six million, four hundred six thousand, seven hundred fifty-one".