51362660 has 48 divisors (see below), whose sum is σ = 114401280. Its totient is φ = 19336320.

The previous prime is 51362659. The next prime is 51362693. The reversal of 51362660 is 6626315.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21821 + ... + 24059.

It is an arithmetic number, because the mean of its divisors is an integer number (2383360).

Almost surely, 2^51362660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51362660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57200640).

51362660 is an abundant number, since it is smaller than the sum of its proper divisors (63038620).

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

51362660 is a wasteful number, since it uses less digits than its factorization.

51362660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316 (or 2314 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 51362660 is about 7166.7747278675. The cubic root of 51362660 is about 371.7199206024.

Adding to 51362660 its reverse (6626315), we get a palindrome (57988975).

The spelling of 51362660 in words is "fifty-one million, three hundred sixty-two thousand, six hundred sixty".