651552089 has 2 divisors, whose sum is σ = 651552090. Its totient is φ = 651552088.

The previous prime is 651552053. The next prime is 651552103. The reversal of 651552089 is 980255156.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 604176400 + 47375689 = 24580^2 + 6883^2 .

It is a cyclic number.

It is not a de Polignac number, because 651552089 - 2²⁴ = 634774873 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (651554089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325776044 + 325776045.

It is an arithmetic number, because the mean of its divisors is an integer number (325776045).

Almost surely, 2^651552089 is an apocalyptic number.

It is an amenable number.

651552089 is a deficient number, since it is larger than the sum of its proper divisors (1).

651552089 is an equidigital number, since it uses as much as digits as its factorization.

651552089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108000, while the sum is 41.

The square root of 651552089 is about 25525.5183884676. The cubic root of 651552089 is about 866.9280343021.

The spelling of 651552089 in words is "six hundred fifty-one million, five hundred fifty-two thousand, eighty-nine".