651255356 has 6 divisors (see below), whose sum is σ = 1139696880. Its totient is φ = 325627676.

The previous prime is 651255331. The next prime is 651255377. The reversal of 651255356 is 653552156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81406916 + ... + 81406923.

It is an arithmetic number, because the mean of its divisors is an integer number (189949480).

Almost surely, 2^651255356 is an apocalyptic number.

It is an amenable number.

651255356 is a deficient number, since it is larger than the sum of its proper divisors (488441524).

651255356 is a wasteful number, since it uses less digits than its factorization.

651255356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162813843 (or 162813841 counting only the distinct ones).

The product of its digits is 135000, while the sum is 38.

The square root of 651255356 is about 25519.7052490815. The cubic root of 651255356 is about 866.7964074669.

The spelling of 651255356 in words is "six hundred fifty-one million, two hundred fifty-five thousand, three hundred fifty-six".