56651039 has 2 divisors, whose sum is σ = 56651040. Its totient is φ = 56651038.

The previous prime is 56651029. The next prime is 56651051. The reversal of 56651039 is 93015665.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56651039 - 2¹² = 56646943 is a 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 (56651029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28325519 + 28325520.

It is an arithmetic number, because the mean of its divisors is an integer number (28325520).

Almost surely, 2^56651039 is an apocalyptic number.

56651039 is a deficient number, since it is larger than the sum of its proper divisors (1).

56651039 is an equidigital number, since it uses as much as digits as its factorization.

56651039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 56651039 is about 7526.6884484480. The cubic root of 56651039 is about 384.0631383991.

The spelling of 56651039 in words is "fifty-six million, six hundred fifty-one thousand, thirty-nine".