51652968 has 32 divisors (see below), whose sum is σ = 129384000. Its totient is φ = 17184128.

The previous prime is 51652967. The next prime is 51652981. The reversal of 51652968 is 86925615.

It is a Cunningham number, because it is equal to 7187²-1.

It is not an unprimeable number, because it can be changed into a prime (51652967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12580 + ... + 16172.

It is an arithmetic number, because the mean of its divisors is an integer number (4043250).

Almost surely, 2^51652968 is an apocalyptic number.

It is an amenable number.

51652968 is an abundant number, since it is smaller than the sum of its proper divisors (77731032).

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

51652968 is a wasteful number, since it uses less digits than its factorization.

51652968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4201 (or 4197 counting only the distinct ones).

The product of its digits is 129600, while the sum is 42.

The square root of 51652968 is about 7186.9999304299. Note that the first 4 decimals coincide. The cubic root of 51652968 is about 372.4189406672.

The spelling of 51652968 in words is "fifty-one million, six hundred fifty-two thousand, nine hundred sixty-eight".