51929952 has 96 divisors (see below), whose sum is σ = 147329280. Its totient is φ = 15966720.

The previous prime is 51929947. The next prime is 51929953. The reversal of 51929952 is 25992915.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51929953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63627 + ... + 64437.

It is an arithmetic number, because the mean of its divisors is an integer number (1534680).

Almost surely, 2^51929952 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 51929952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73664640).

51929952 is an abundant number, since it is smaller than the sum of its proper divisors (95399328).

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

51929952 is a wasteful number, since it uses less digits than its factorization.

51929952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876 (or 868 counting only the distinct ones).

The product of its digits is 72900, while the sum is 42.

The square root of 51929952 is about 7206.2439592342. The cubic root of 51929952 is about 373.0834410475.

The spelling of 51929952 in words is "fifty-one million, nine hundred twenty-nine thousand, nine hundred fifty-two".