651425730 has 16 divisors (see below), whose sum is σ = 1563421824. Its totient is φ = 173713520.

The previous prime is 651425717. The next prime is 651425777. The reversal of 651425730 is 37524156.

It is a junction number, because it is equal to n+sod(n) for n = 651425691 and 651425700.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10857066 + ... + 10857125.

It is an arithmetic number, because the mean of its divisors is an integer number (97713864).

Almost surely, 2^651425730 is an apocalyptic number.

651425730 is an abundant number, since it is smaller than the sum of its proper divisors (911996094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

651425730 is a wasteful number, since it uses less digits than its factorization.

651425730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21714201.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 651425730 is about 25523.0431179356. The cubic root of 651425730 is about 866.8719880072.

Adding to 651425730 its reverse (37524156), we get a palindrome (688949886).

The spelling of 651425730 in words is "six hundred fifty-one million, four hundred twenty-five thousand, seven hundred thirty".