50643660 has 24 divisors (see below), whose sum is σ = 141802416. Its totient is φ = 13504960.

The previous prime is 50643613. The next prime is 50643727. The reversal of 50643660 is 6634605.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 421971 + ... + 422090.

It is an arithmetic number, because the mean of its divisors is an integer number (5908434).

Almost surely, 2^50643660 is an apocalyptic number.

It is an amenable number.

50643660 is an abundant number, since it is smaller than the sum of its proper divisors (91158756).

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

50643660 is a wasteful number, since it uses less digits than its factorization.

50643660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844073 (or 844071 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 50643660 is about 7116.4359057045. The cubic root of 50643660 is about 369.9772569415.

The spelling of 50643660 in words is "fifty million, six hundred forty-three thousand, six hundred sixty".