51112413 has 48 divisors (see below), whose sum is σ = 87796800. Its totient is φ = 28304640.

The previous prime is 51112393. The next prime is 51112427. The reversal of 51112413 is 31421115.

It is not a de Polignac number, because 51112413 - 2¹⁸ = 50850269 is a prime.

It is a super-2 number, since 2×51112413² = 5224957525365138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51112493) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54081 + ... + 55017.

It is an arithmetic number, because the mean of its divisors is an integer number (1829100).

Almost surely, 2^51112413 is an apocalyptic number.

It is an amenable number.

51112413 is a deficient number, since it is larger than the sum of its proper divisors (36684387).

51112413 is a wasteful number, since it uses less digits than its factorization.

51112413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002 (or 999 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 51112413 is about 7149.2945805863. The cubic root of 51112413 is about 371.1152447704.

Adding to 51112413 its reverse (31421115), we get a palindrome (82533528).

The spelling of 51112413 in words is "fifty-one million, one hundred twelve thousand, four hundred thirteen".