50021405 has 16 divisors (see below), whose sum is σ = 70003200. Its totient is φ = 34299216.

The previous prime is 50021369. The next prime is 50021407. The reversal of 50021405 is 50412005.

It is not a de Polignac number, because 50021405 - 2⁸ = 50021149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50021407) 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, 12869 + ... + 16298.

It is an arithmetic number, because the mean of its divisors is an integer number (4375200).

Almost surely, 2^50021405 is an apocalyptic number.

It is an amenable number.

50021405 is a deficient number, since it is larger than the sum of its proper divisors (19981795).

50021405 is an equidigital number, since it uses as much as digits as its factorization.

50021405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29193 (or 29179 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 50021405 is about 7072.5812119763. The cubic root of 50021405 is about 368.4557134934.

The spelling of 50021405 in words is "fifty million, twenty-one thousand, four hundred five".