651066256 has 15 divisors (see below), whose sum is σ = 1261638651. Its totient is φ = 325482096.

The previous prime is 651066253. The next prime is 651066263. The reversal of 651066256 is 652660156.

The square root of 651066256 is 25516.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (651066253) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 98875 + ... + 105253.

Almost surely, 2^651066256 is an apocalyptic number.

651066256 is the 25516-th square number.

It is an amenable number.

651066256 is a deficient number, since it is larger than the sum of its proper divisors (610572395).

651066256 is an frugal number, since it uses more digits than its factorization.

651066256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12766 (or 6381 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The cubic root of 651066256 is about 866.7125043475.

The spelling of 651066256 in words is "six hundred fifty-one million, sixty-six thousand, two hundred fifty-six".