51107788 has 12 divisors (see below), whose sum is σ = 90698832. Its totient is φ = 25193840.

The previous prime is 51107783. The next prime is 51107789. The reversal of 51107788 is 88770115.

It is a super-2 number, since 2×51107788² = 5224011988505888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51107783) 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, 89695 + ... + 90262.

It is an arithmetic number, because the mean of its divisors is an integer number (7558236).

Almost surely, 2^51107788 is an apocalyptic number.

It is an amenable number.

51107788 is a deficient number, since it is larger than the sum of its proper divisors (39591044).

51107788 is a wasteful number, since it uses less digits than its factorization.

51107788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180032 (or 180030 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 37.

The square root of 51107788 is about 7148.9711147829. The cubic root of 51107788 is about 371.1040507526.

The spelling of 51107788 in words is "fifty-one million, one hundred seven thousand, seven hundred eighty-eight".