56271619 has 2 divisors, whose sum is σ = 56271620. Its totient is φ = 56271618.

The previous prime is 56271617. The next prime is 56271623. The reversal of 56271619 is 91617265.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56271619 - 2¹ = 56271617 is a prime.

It is a super-2 number, since 2×56271619² = 6332990209762322, which contains 22 as substring.

Together with 56271617, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (56271617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28135809 + 28135810.

It is an arithmetic number, because the mean of its divisors is an integer number (28135810).

Almost surely, 2^56271619 is an apocalyptic number.

56271619 is a deficient number, since it is larger than the sum of its proper divisors (1).

56271619 is an equidigital number, since it uses as much as digits as its factorization.

56271619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 37.

The square root of 56271619 is about 7501.4411282100. The cubic root of 56271619 is about 383.2037968535.

The spelling of 56271619 in words is "fifty-six million, two hundred seventy-one thousand, six hundred nineteen".