51507652 has 12 divisors (see below), whose sum is σ = 103015360. Its totient is φ = 22074696.

The previous prime is 51507641. The next prime is 51507653. The reversal of 51507652 is 25670515.

51507652 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (51507653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 919752 + ... + 919807.

Almost surely, 2^51507652 is an apocalyptic number.

It is an amenable number.

51507652 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51507652 is a wasteful number, since it uses less digits than its factorization.

51507652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839570 (or 1839568 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 51507652 is about 7176.8831675038. The cubic root of 51507652 is about 372.0693688804.

The spelling of 51507652 in words is "fifty-one million, five hundred seven thousand, six hundred fifty-two".