50653668 has 48 divisors (see below), whose sum is σ = 129394496. Its totient is φ = 15327360.

The previous prime is 50653663. The next prime is 50653679. The reversal of 50653668 is 86635605.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (50653661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6855 + ... + 12177.

Almost surely, 2^50653668 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 50653668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64697248).

50653668 is an abundant number, since it is smaller than the sum of its proper divisors (78740828).

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

50653668 is a wasteful number, since it uses less digits than its factorization.

50653668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5404 (or 5402 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 50653668 is about 7117.1390319425. The cubic root of 50653668 is about 370.0016264842.

The spelling of 50653668 in words is "fifty million, six hundred fifty-three thousand, six hundred sixty-eight".