51001113 has 8 divisors (see below), whose sum is σ = 68344000. Its totient is φ = 33829488.

The previous prime is 51001109. The next prime is 51001123. The reversal of 51001113 is 31110015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51001113 - 2² = 51001109 is a prime.

It is a super-2 number, since 2×51001113² = 5202227054477538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51001123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42118 + ... + 43311.

It is an arithmetic number, because the mean of its divisors is an integer number (8543000).

Almost surely, 2^51001113 is an apocalyptic number.

It is an amenable number.

51001113 is a deficient number, since it is larger than the sum of its proper divisors (17342887).

51001113 is a wasteful number, since it uses less digits than its factorization.

51001113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85631.

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

The square root of 51001113 is about 7141.5063537044. The cubic root of 51001113 is about 370.8456746079.

Adding to 51001113 its reverse (31110015), we get a palindrome (82111128).

The spelling of 51001113 in words is "fifty-one million, one thousand, one hundred thirteen".