56074639 has 2 divisors, whose sum is σ = 56074640. Its totient is φ = 56074638.

The previous prime is 56074631. The next prime is 56074649. The reversal of 56074639 is 93647065.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56074639 - 2³ = 56074631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56074631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28037319 + 28037320.

It is an arithmetic number, because the mean of its divisors is an integer number (28037320).

Almost surely, 2^56074639 is an apocalyptic number.

56074639 is a deficient number, since it is larger than the sum of its proper divisors (1).

56074639 is an equidigital number, since it uses as much as digits as its factorization.

56074639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 56074639 is about 7488.3001408864. The cubic root of 56074639 is about 382.7561364158.

The spelling of 56074639 in words is "fifty-six million, seventy-four thousand, six hundred thirty-nine".