51766460 has 24 divisors (see below), whose sum is σ = 109280976. Its totient is φ = 20597760.

The previous prime is 51766459. The next prime is 51766471. The reversal of 51766460 is 6466715.

It is a self number, because there is not a number n which added to its sum of digits gives 51766460.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2846 + ... + 10565.

It is an arithmetic number, because the mean of its divisors is an integer number (4553374).

Almost surely, 2^51766460 is an apocalyptic number.

It is an amenable number.

51766460 is an abundant number, since it is smaller than the sum of its proper divisors (57514516).

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

51766460 is a wasteful number, since it uses less digits than its factorization.

51766460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13613 (or 13611 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 51766460 is about 7194.8912430974. The cubic root of 51766460 is about 372.6915010106.

The spelling of 51766460 in words is "fifty-one million, seven hundred sixty-six thousand, four hundred sixty".