651053952 has 96 divisors (see below), whose sum is σ = 1881037080. Its totient is φ = 216142848.

The previous prime is 651053951. The next prime is 651053987. The reversal of 651053952 is 259350156.

651053952 is a `hidden beast` number, since 6 + 510 + 53 + 95 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651053951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 325018 + ... + 327014.

Almost surely, 2^651053952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 651053952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (940518540).

651053952 is an abundant number, since it is smaller than the sum of its proper divisors (1229983128).

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

651053952 is a wasteful number, since it uses less digits than its factorization.

651053952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2300 (or 2285 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

The square root of 651053952 is about 25515.7588952396. The cubic root of 651053952 is about 866.7070445356.

The spelling of 651053952 in words is "six hundred fifty-one million, fifty-three thousand, nine hundred fifty-two".