51108427 has 16 divisors (see below), whose sum is σ = 53936064. Its totient is φ = 48384000.

The previous prime is 51108413. The next prime is 51108451. The reversal of 51108427 is 72480115.

It is a cyclic number.

It is not a de Polignac number, because 51108427 - 2¹¹ = 51106379 is a prime.

It is a super-2 number, since 2×51108427² = 5224142620828658, 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 = 51108395 and 51108404.

It is not an unprimeable number, because it can be changed into a prime (51108457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282277 + ... + 282457.

It is an arithmetic number, because the mean of its divisors is an integer number (3371004).

Almost surely, 2^51108427 is an apocalyptic number.

51108427 is a deficient number, since it is larger than the sum of its proper divisors (2827637).

51108427 is a wasteful number, since it uses less digits than its factorization.

51108427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 51108427 is about 7149.0158063890. The cubic root of 51108427 is about 371.1055973825.

The spelling of 51108427 in words is "fifty-one million, one hundred eight thousand, four hundred twenty-seven".