51128296 has 16 divisors (see below), whose sum is σ = 96172740. Its totient is φ = 25482240.

The previous prime is 51128293. The next prime is 51128317. The reversal of 51128296 is 69282115.

It can be written as a sum of positive squares in 2 ways, for example, as 49196196 + 1932100 = 7014^2 + 1390^2 .

It is a super-2 number, since 2×51128296² = 5228205303727232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51128291) 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, 7545 + ... + 12616.

Almost surely, 2^51128296 is an apocalyptic number.

It is an amenable number.

51128296 is a deficient number, since it is larger than the sum of its proper divisors (45044444).

51128296 is a wasteful number, since it uses less digits than its factorization.

51128296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20484 (or 20480 counting only the distinct ones).

The product of its digits is 8640, while the sum is 34.

The square root of 51128296 is about 7150.4053031979. The cubic root of 51128296 is about 371.1536817021.

The spelling of 51128296 in words is "fifty-one million, one hundred twenty-eight thousand, two hundred ninety-six".