651064252 has 12 divisors (see below), whose sum is σ = 1139657680. Its totient is φ = 325447776.

The previous prime is 651064223. The next prime is 651064273. The reversal of 651064252 is 252460156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1752 + ... + 36127.

Almost surely, 2^651064252 is an apocalyptic number.

It is an amenable number.

651064252 is a deficient number, since it is larger than the sum of its proper divisors (488593428).

651064252 is a wasteful number, since it uses less digits than its factorization.

651064252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42180 (or 42178 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 651064252 is about 25515.9607304918. The cubic root of 651064252 is about 866.7116150915.

The spelling of 651064252 in words is "six hundred fifty-one million, sixty-four thousand, two hundred fifty-two".