56651087 has 2 divisors, whose sum is σ = 56651088. Its totient is φ = 56651086.

The previous prime is 56651051. The next prime is 56651129. The reversal of 56651087 is 78015665.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56651087 - 2¹² = 56646991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56651087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56651687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28325543 + 28325544.

It is an arithmetic number, because the mean of its divisors is an integer number (28325544).

Almost surely, 2^56651087 is an apocalyptic number.

56651087 is a deficient number, since it is larger than the sum of its proper divisors (1).

56651087 is an equidigital number, since it uses as much as digits as its factorization.

56651087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 56651087 is about 7526.6916371006. The cubic root of 56651087 is about 384.0632468704.

The spelling of 56651087 in words is "fifty-six million, six hundred fifty-one thousand, eighty-seven".