51001104 has 80 divisors (see below), whose sum is σ = 164275200. Its totient is φ = 13246080.

The previous prime is 51001043. The next prime is 51001109. The reversal of 51001104 is 40110015.

It is a happy number.

It is a super-2 number, since 2×51001104² = 5202225218437632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 51001104.

It is not an unprimeable number, because it can be changed into a prime (51001109) 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, 3204 + ... + 10595.

It is an arithmetic number, because the mean of its divisors is an integer number (2053440).

Almost surely, 2^51001104 is an apocalyptic number.

It is an amenable number.

51001104 is an abundant number, since it is smaller than the sum of its proper divisors (113274096).

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

51001104 is a wasteful number, since it uses less digits than its factorization.

51001104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13828 (or 13822 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 51001104 is about 7141.5057235852. The cubic root of 51001104 is about 370.8456527939.

Adding to 51001104 its reverse (40110015), we get a palindrome (91111119).

The spelling of 51001104 in words is "fifty-one million, one thousand, one hundred four".