51003880 has 32 divisors (see below), whose sum is σ = 119750400. Its totient is φ = 19514176.

The previous prime is 51003863. The next prime is 51003881. The reversal of 51003880 is 8830015.

It is not an unprimeable number, because it can be changed into a prime (51003881) 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, 26800 + ... + 28639.

It is an arithmetic number, because the mean of its divisors is an integer number (3742200).

Almost surely, 2^51003880 is an apocalyptic number.

It is an amenable number.

51003880 is an abundant number, since it is smaller than the sum of its proper divisors (68746520).

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

51003880 is a wasteful number, since it uses less digits than its factorization.

51003880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55473 (or 55469 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 51003880 is about 7141.7000777126. The cubic root of 51003880 is about 370.8523810721.

Adding to 51003880 its reverse (8830015), we get a palindrome (59833895).

The spelling of 51003880 in words is "fifty-one million, three thousand, eight hundred eighty".