51118374 has 16 divisors (see below), whose sum is σ = 106682112. Its totient is φ = 16298568.

The previous prime is 51118313. The next prime is 51118393. The reversal of 51118374 is 47381115.

It is a super-2 number, since 2×51118374² = 5226176320807752, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185074 + ... + 185349.

It is an arithmetic number, because the mean of its divisors is an integer number (6667632).

Almost surely, 2^51118374 is an apocalyptic number.

51118374 is an abundant number, since it is smaller than the sum of its proper divisors (55563738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51118374 is a wasteful number, since it uses less digits than its factorization.

51118374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370451.

The product of its digits is 3360, while the sum is 30.

The square root of 51118374 is about 7149.7114627095. The cubic root of 51118374 is about 371.1296713506.

Adding to 51118374 its reverse (47381115), we get a palindrome (98499489).

The spelling of 51118374 in words is "fifty-one million, one hundred eighteen thousand, three hundred seventy-four".