51007188 has 12 divisors (see below), whose sum is σ = 119016800. Its totient is φ = 17002392.

The previous prime is 51007171. The next prime is 51007189. The reversal of 51007188 is 88170015.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51007189) 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, 2125288 + ... + 2125311.

Almost surely, 2^51007188 is an apocalyptic number.

It is an amenable number.

51007188 is an abundant number, since it is smaller than the sum of its proper divisors (68009612).

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

51007188 is a wasteful number, since it uses less digits than its factorization.

51007188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4250606 (or 4250604 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 30.

The square root of 51007188 is about 7141.9316714738. The cubic root of 51007188 is about 370.8603984567.

The spelling of 51007188 in words is "fifty-one million, seven thousand, one hundred eighty-eight".