50571664 has 120 divisors (see below), whose sum is σ = 124117056. Its totient is φ = 19641600.

The previous prime is 50571649. The next prime is 50571691. The reversal of 50571664 is 46617505.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1631329 + ... + 1631359.

Almost surely, 2^50571664 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 50571664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62058528).

50571664 is an abundant number, since it is smaller than the sum of its proper divisors (73545392).

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

50571664 is a wasteful number, since it uses less digits than its factorization.

50571664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 50571664 is about 7111.3756756341. The cubic root of 50571664 is about 369.8018515365.

The spelling of 50571664 in words is "fifty million, five hundred seventy-one thousand, six hundred sixty-four".