51807104 has 32 divisors (see below), whose sum is σ = 106008600. Its totient is φ = 25201152.

The previous prime is 51807101. The next prime is 51807139. The reversal of 51807104 is 40170815.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51807101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 734 + ... + 10205.

Almost surely, 2^51807104 is an apocalyptic number.

It is an amenable number.

51807104 is an abundant number, since it is smaller than the sum of its proper divisors (54201496).

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

51807104 is a wasteful number, since it uses less digits than its factorization.

51807104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10990 (or 10978 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 51807104 is about 7197.7151930317. The cubic root of 51807104 is about 372.7890140254.

Adding to 51807104 its reverse (40170815), we get a palindrome (91977919).

The spelling of 51807104 in words is "fifty-one million, eight hundred seven thousand, one hundred four".