50172892 has 72 divisors (see below), whose sum is σ = 112613760. Its totient is φ = 19140000.

The previous prime is 50172887. The next prime is 50172989. The reversal of 50172892 is 29827105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199767 + ... + 200017.

It is an arithmetic number, because the mean of its divisors is an integer number (1564080).

Almost surely, 2^50172892 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 50172892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56306880).

50172892 is an abundant number, since it is smaller than the sum of its proper divisors (62440868).

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

50172892 is a wasteful number, since it uses less digits than its factorization.

50172892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 50172892 is about 7083.2825723671. The cubic root of 50172892 is about 368.8272877546.

Adding to 50172892 its reverse (29827105), we get a palindrome (79999997).

The spelling of 50172892 in words is "fifty million, one hundred seventy-two thousand, eight hundred ninety-two".