651044725 has 24 divisors (see below), whose sum is σ = 832203680. Its totient is φ = 504947520.

The previous prime is 651044707. The next prime is 651044729. The reversal of 651044725 is 527440156.

It is not a de Polignac number, because 651044725 - 2²¹ = 648947573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651044729) 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 in 23 ways as a sum of consecutive naturals, for example, 147247 + ... + 151603.

Almost surely, 2^651044725 is an apocalyptic number.

It is an amenable number.

651044725 is a deficient number, since it is larger than the sum of its proper divisors (181158955).

651044725 is a wasteful number, since it uses less digits than its factorization.

651044725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4549 (or 4544 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 651044725 is about 25515.5780847701. The cubic root of 651044725 is about 866.7029500753.

The spelling of 651044725 in words is "six hundred fifty-one million, forty-four thousand, seven hundred twenty-five".