51100113 has 16 divisors (see below), whose sum is σ = 72411840. Its totient is φ = 32053568.

The previous prime is 51100057. The next prime is 51100157. The reversal of 51100113 is 31100115.

It is not a de Polignac number, because 51100113 - 2¹⁰ = 51099089 is a prime.

It is a super-2 number, since 2×51100113² = 5222443097225538, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51100213) 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, 13006 + ... + 16472.

It is an arithmetic number, because the mean of its divisors is an integer number (4525740).

Almost surely, 2^51100113 is an apocalyptic number.

It is an amenable number.

51100113 is a deficient number, since it is larger than the sum of its proper divisors (21311727).

51100113 is an equidigital number, since it uses as much as digits as its factorization.

51100113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521 (or 3487 counting only the distinct ones).

The product of its (nonzero) digits is 15, while the sum is 12.

The square root of 51100113 is about 7148.4343040976. The cubic root of 51100113 is about 371.0854732436.

Adding to 51100113 its reverse (31100115), we get a palindrome (82200228).

The spelling of 51100113 in words is "fifty-one million, one hundred thousand, one hundred thirteen".