51115119 has 12 divisors (see below), whose sum is σ = 74913048. Its totient is φ = 30978640.

The previous prime is 51115117. The next prime is 51115121. The reversal of 51115119 is 91151115.

It is an interprime number because it is at equal distance from previous prime (51115117) and next prime (51115121).

It is not a de Polignac number, because 51115119 - 2¹ = 51115117 is a prime.

It is a super-2 number, since 2×51115119² = 5225510780768322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51115117) 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, 70044 + ... + 70769.

It is an arithmetic number, because the mean of its divisors is an integer number (6242754).

Almost surely, 2^51115119 is an apocalyptic number.

51115119 is a deficient number, since it is larger than the sum of its proper divisors (23797929).

51115119 is a wasteful number, since it uses less digits than its factorization.

51115119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140838 (or 140827 counting only the distinct ones).

The product of its digits is 225, while the sum is 24.

The square root of 51115119 is about 7149.4838275221. The cubic root of 51115119 is about 371.1217938653.

The spelling of 51115119 in words is "fifty-one million, one hundred fifteen thousand, one hundred nineteen".