656516051 has 2 divisors, whose sum is σ = 656516052. Its totient is φ = 656516050.

The previous prime is 656516041. The next prime is 656516057. The reversal of 656516051 is 150615656.

656516051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-656516051 is a prime.

It is not a weakly prime, because it can be changed into another prime (656516057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328258025 + 328258026.

It is an arithmetic number, because the mean of its divisors is an integer number (328258026).

Almost surely, 2^656516051 is an apocalyptic number.

656516051 is a deficient number, since it is larger than the sum of its proper divisors (1).

656516051 is an equidigital number, since it uses as much as digits as its factorization.

656516051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 656516051 is about 25622.5691725088. The cubic root of 656516051 is about 869.1240803223.

The spelling of 656516051 in words is "six hundred fifty-six million, five hundred sixteen thousand, fifty-one".