51120027 has 12 divisors (see below), whose sum is σ = 84388720. Its totient is φ = 29211408.

The previous prime is 51119987. The next prime is 51120029. The reversal of 51120027 is 72002115.

It is not a de Polignac number, because 51120027 - 2⁸ = 51119771 is a prime.

It is a super-2 number, since 2×51120027² = 5226514320961458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51119991 and 51120009.

It is not an unprimeable number, because it can be changed into a prime (51120029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 405652 + ... + 405777.

Almost surely, 2^51120027 is an apocalyptic number.

51120027 is a deficient number, since it is larger than the sum of its proper divisors (33268693).

51120027 is a wasteful number, since it uses less digits than its factorization.

51120027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811442 (or 811439 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 51120027 is about 7149.8270608456. The cubic root of 51120027 is about 371.1336716782.

The spelling of 51120027 in words is "fifty-one million, one hundred twenty thousand, twenty-seven".