50172668 has 96 divisors (see below), whose sum is σ = 115248000. Its totient is φ = 18966528.

The previous prime is 50172667. The next prime is 50172677. The reversal of 50172668 is 86627105.

It is a super-2 number, since 2×50172668² = 5034593228476448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50172667) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 517196 + ... + 517292.

It is an arithmetic number, because the mean of its divisors is an integer number (1200500).

Almost surely, 2^50172668 is an apocalyptic number.

50172668 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50172668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57624000).

50172668 is an abundant number, since it is smaller than the sum of its proper divisors (65075332).

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

50172668 is a wasteful number, since it uses less digits than its factorization.

50172668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 50172668 is about 7083.2667604715. The cubic root of 50172668 is about 368.8267388697.

The spelling of 50172668 in words is "fifty million, one hundred seventy-two thousand, six hundred sixty-eight".