51127975 has 12 divisors (see below), whose sum is σ = 63754600. Its totient is φ = 40672800.

The previous prime is 51127927. The next prime is 51128003. The reversal of 51127975 is 57972115.

It is not a de Polignac number, because 51127975 - 2¹⁵ = 51095207 is a prime.

It is a super-2 number, since 2×51127975² = 5228139655201250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1125 + ... + 10174.

Almost surely, 2^51127975 is an apocalyptic number.

51127975 is a deficient number, since it is larger than the sum of its proper divisors (12626625).

51127975 is a wasteful number, since it uses less digits than its factorization.

51127975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11490 (or 11485 counting only the distinct ones).

The product of its digits is 22050, while the sum is 37.

The square root of 51127975 is about 7150.3828568826. The cubic root of 51127975 is about 371.1529049594.

The spelling of 51127975 in words is "fifty-one million, one hundred twenty-seven thousand, nine hundred seventy-five".