50984921 has 16 divisors (see below), whose sum is σ = 58414608. Its totient is φ = 44083200.

The previous prime is 50984911. The next prime is 50984939. The reversal of 50984921 is 12948905.

It can be written as a sum of positive squares in 8 ways, for example, as 290521 + 50694400 = 539^2 + 7120^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50984921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50984911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61691 + ... + 62511.

It is an arithmetic number, because the mean of its divisors is an integer number (3650913).

Almost surely, 2^50984921 is an apocalyptic number.

It is an amenable number.

50984921 is a deficient number, since it is larger than the sum of its proper divisors (7429687).

50984921 is a wasteful number, since it uses less digits than its factorization.

50984921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 50984921 is about 7140.3726093251. The cubic root of 50984921 is about 370.8064246883.

The spelling of 50984921 in words is "fifty million, nine hundred eighty-four thousand, nine hundred twenty-one".