651596056225 has 81 divisors (see below), whose sum is σ = 886185861483. Its totient is φ = 475184868480.

The previous prime is 651596056213. The next prime is 651596056247. The reversal of 651596056225 is 522650695156.

The square root of 651596056225 is 807215.

It is a perfect power (a square), and thus also a powerful number.

651596056225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 13 ways, for example, as 77341278609 + 574254777616 = 278103^2 + 757796^2 .

It is not a de Polignac number, because 651596056225 - 2¹⁵ = 651596023457 is a prime.

It is a super-2 number, since 2×651596056225² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 2223877179 + ... + 2223877471.

Almost surely, 2^651596056225 is an apocalyptic number.

651596056225 is the 807215-th square number.

651596056225 is the 403608-th centered octagonal number.

It is an amenable number.

651596056225 is a deficient number, since it is larger than the sum of its proper divisors (234589805258).

651596056225 is an equidigital number, since it uses as much as digits as its factorization.

651596056225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 4860000, while the sum is 52.

The spelling of 651596056225 in words is "six hundred fifty-one billion, five hundred ninety-six million, fifty-six thousand, two hundred twenty-five".