51746680 has 32 divisors (see below), whose sum is σ = 116751600. Its totient is φ = 20641536.

The previous prime is 51746677. The next prime is 51746689. The reversal of 51746680 is 8664715.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51746689) 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, 14779 + ... + 17941.

Almost surely, 2^51746680 is an apocalyptic number.

It is an amenable number.

51746680 is an abundant number, since it is smaller than the sum of its proper divisors (65004920).

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

51746680 is a wasteful number, since it uses less digits than its factorization.

51746680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3583 (or 3579 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 51746680 is about 7193.5165253164. The cubic root of 51746680 is about 372.6440264037.

The spelling of 51746680 in words is "fifty-one million, seven hundred forty-six thousand, six hundred eighty".