50187921 has 8 divisors (see below), whose sum is σ = 76476864. Its totient is φ = 28678800.

The previous prime is 50187919. The next prime is 50187931. The reversal of 50187921 is 12978105.

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

It is not a de Polignac number, because 50187921 - 2¹ = 50187919 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50187931) 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, 1194930 + ... + 1194971.

It is an arithmetic number, because the mean of its divisors is an integer number (9559608).

Almost surely, 2^50187921 is an apocalyptic number.

It is an amenable number.

50187921 is a deficient number, since it is larger than the sum of its proper divisors (26288943).

50187921 is a wasteful number, since it uses less digits than its factorization.

50187921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2389911.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 50187921 is about 7084.3433711248. The cubic root of 50187921 is about 368.8641107727.

The spelling of 50187921 in words is "fifty million, one hundred eighty-seven thousand, nine hundred twenty-one".