651375425 has 12 divisors (see below), whose sum is σ = 816783660. Its totient is φ = 515243520.

The previous prime is 651375391. The next prime is 651375427. The reversal of 651375425 is 524573156.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 36385024 + 614990401 = 6032^2 + 24799^2 .

It is not a de Polignac number, because 651375425 - 2⁸ = 651375169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (651375427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144152 + ... + 148601.

It is an arithmetic number, because the mean of its divisors is an integer number (68065305).

Almost surely, 2^651375425 is an apocalyptic number.

It is an amenable number.

651375425 is a deficient number, since it is larger than the sum of its proper divisors (165408235).

651375425 is a wasteful number, since it uses less digits than its factorization.

651375425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292852 (or 292847 counting only the distinct ones).

The product of its digits is 126000, while the sum is 38.

The square root of 651375425 is about 25522.0576168929. The cubic root of 651375425 is about 866.8496733027.

The spelling of 651375425 in words is "six hundred fifty-one million, three hundred seventy-five thousand, four hundred twenty-five".