56753971 has 2 divisors, whose sum is σ = 56753972. Its totient is φ = 56753970.

The previous prime is 56753959. The next prime is 56753987. The reversal of 56753971 is 17935765.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56753971 - 2⁷ = 56753843 is a prime.

It is not a weakly prime, because it can be changed into another prime (56753941) 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, 28376985 + 28376986.

It is an arithmetic number, because the mean of its divisors is an integer number (28376986).

Almost surely, 2^56753971 is an apocalyptic number.

56753971 is a deficient number, since it is larger than the sum of its proper divisors (1).

56753971 is an equidigital number, since it uses as much as digits as its factorization.

56753971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 198450, while the sum is 43.

The square root of 56753971 is about 7533.5231465762. The cubic root of 56753971 is about 384.2956052643.

The spelling of 56753971 in words is "fifty-six million, seven hundred fifty-three thousand, nine hundred seventy-one".