50642172 has 96 divisors (see below), whose sum is σ = 152087040. Its totient is φ = 14451696.

The previous prime is 50642161. The next prime is 50642191. The reversal of 50642172 is 27124605.

50642172 is a `hidden beast` number, since 5 + 0 + 642 + 17 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60823 + ... + 61649.

It is an arithmetic number, because the mean of its divisors is an integer number (1584240).

Almost surely, 2^50642172 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 50642172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76043520).

50642172 is an abundant number, since it is smaller than the sum of its proper divisors (101444868).

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

50642172 is an equidigital number, since it uses as much as digits as its factorization.

50642172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859 (or 839 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 50642172 is about 7116.3313582210. The cubic root of 50642172 is about 369.9736333780.

Adding to 50642172 its reverse (27124605), we get a palindrome (77766777).

The spelling of 50642172 in words is "fifty million, six hundred forty-two thousand, one hundred seventy-two".