51502260 has 48 divisors (see below), whose sum is σ = 149184000. Its totient is φ = 13259904.

The previous prime is 51502249. The next prime is 51502291. The reversal of 51502260 is 6220515.

51502260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13060 + ... + 16539.

It is an arithmetic number, because the mean of its divisors is an integer number (3108000).

Almost surely, 2^51502260 is an apocalyptic number.

It is an amenable number.

51502260 is an abundant number, since it is smaller than the sum of its proper divisors (97681740).

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

51502260 is a wasteful number, since it uses less digits than its factorization.

51502260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29640 (or 29638 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 51502260 is about 7176.5075071374. The cubic root of 51502260 is about 372.0563852558.

Adding to 51502260 its reverse (6220515), we get a palindrome (57722775).

The spelling of 51502260 in words is "fifty-one million, five hundred two thousand, two hundred sixty".