51700668 has 24 divisors (see below), whose sum is σ = 120753360. Its totient is φ = 17216640.

The previous prime is 51700651. The next prime is 51700669. The reversal of 51700668 is 86600715.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51700669) 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, 19248 + ... + 21768.

It is an arithmetic number, because the mean of its divisors is an integer number (5031390).

Almost surely, 2^51700668 is an apocalyptic number.

It is an amenable number.

51700668 is an abundant number, since it is smaller than the sum of its proper divisors (69052692).

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

51700668 is a wasteful number, since it uses less digits than its factorization.

51700668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4237 (or 4235 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 51700668 is about 7190.3176564043. The cubic root of 51700668 is about 372.5335447172.

The spelling of 51700668 in words is "fifty-one million, seven hundred thousand, six hundred sixty-eight".