50251881 has 8 divisors (see below), whose sum is σ = 70943904. Its totient is φ = 31530560.

The previous prime is 50251879. The next prime is 50251913. The reversal of 50251881 is 18815205.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50251881 - 2¹ = 50251879 is a prime.

It is a super-2 number, since 2×50251881² = 5050503088076322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50251871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492615 + ... + 492716.

It is an arithmetic number, because the mean of its divisors is an integer number (8867988).

Almost surely, 2^50251881 is an apocalyptic number.

50251881 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

50251881 is a deficient number, since it is larger than the sum of its proper divisors (20692023).

50251881 is a wasteful number, since it uses less digits than its factorization.

50251881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985351.

The product of its (nonzero) digits is 3200, while the sum is 30.

The square root of 50251881 is about 7088.8561136477. The cubic root of 50251881 is about 369.0207389876.

The spelling of 50251881 in words is "fifty million, two hundred fifty-one thousand, eight hundred eighty-one".