50251889 has 4 divisors (see below), whose sum is σ = 50589300. Its totient is φ = 49914480.

The previous prime is 50251879. The next prime is 50251913. The reversal of 50251889 is 98815205.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98815205 = 5 ⋅19763041.

It can be written as a sum of positive squares in 2 ways, for example, as 9394225 + 40857664 = 3065^2 + 6392^2 .

It is a cyclic number.

It is not a de Polignac number, because 50251889 - 2¹² = 50247793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50251819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168482 + ... + 168779.

It is an arithmetic number, because the mean of its divisors is an integer number (12647325).

Almost surely, 2^50251889 is an apocalyptic number.

It is an amenable number.

50251889 is a deficient number, since it is larger than the sum of its proper divisors (337411).

50251889 is a wasteful number, since it uses less digits than its factorization.

50251889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337410.

The product of its (nonzero) digits is 28800, while the sum is 38.

The square root of 50251889 is about 7088.8566779136. The cubic root of 50251889 is about 369.0207585700.

The spelling of 50251889 in words is "fifty million, two hundred fifty-one thousand, eight hundred eighty-nine".