651506484 has 12 divisors (see below), whose sum is σ = 1520181824. Its totient is φ = 217168824.

The previous prime is 651506477. The next prime is 651506491. The reversal of 651506484 is 484605156.

It is a happy number.

651506484 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (651506477) and next prime (651506491).

It is a tau number, because it is divible by the number of its divisors (12).

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, 27146092 + ... + 27146115.

Almost surely, 2^651506484 is an apocalyptic number.

It is an amenable number.

651506484 is an abundant number, since it is smaller than the sum of its proper divisors (868675340).

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

651506484 is a wasteful number, since it uses less digits than its factorization.

651506484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54292214 (or 54292212 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 651506484 is about 25524.6250511149. The cubic root of 651506484 is about 866.9078071266.

The spelling of 651506484 in words is "six hundred fifty-one million, five hundred six thousand, four hundred eighty-four".