51949632 has 56 divisors (see below), whose sum is σ = 157089856. Its totient is φ = 14842368.

The previous prime is 51949621. The next prime is 51949649. The reversal of 51949632 is 23694915.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17983 + ... + 20670.

It is an arithmetic number, because the mean of its divisors is an integer number (2805176).

Almost surely, 2^51949632 is an apocalyptic number.

It is an amenable number.

51949632 is an abundant number, since it is smaller than the sum of its proper divisors (105140224).

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

51949632 is a wasteful number, since it uses less digits than its factorization.

51949632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38675 (or 38665 counting only the distinct ones).

The product of its digits is 58320, while the sum is 39.

The square root of 51949632 is about 7207.6093123865. The cubic root of 51949632 is about 373.1305644931.

The spelling of 51949632 in words is "fifty-one million, nine hundred forty-nine thousand, six hundred thirty-two".