651340425 has 48 divisors (see below), whose sum is σ = 1147426560. Its totient is φ = 325074240.

The previous prime is 651340343. The next prime is 651340441. The reversal of 651340425 is 524043156.

It is not a de Polignac number, because 651340425 - 2⁸ = 651340169 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 651340392 and 651340401.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 115522 + ... + 121028.

It is an arithmetic number, because the mean of its divisors is an integer number (23904720).

Almost surely, 2^651340425 is an apocalyptic number.

It is an amenable number.

651340425 is a deficient number, since it is larger than the sum of its proper divisors (496086135).

651340425 is a wasteful number, since it uses less digits than its factorization.

651340425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5622 (or 5617 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 651340425 is about 25521.3719262895. The cubic root of 651340425 is about 866.8341470379.

The spelling of 651340425 in words is "six hundred fifty-one million, three hundred forty thousand, four hundred twenty-five".