50040405 has 24 divisors (see below), whose sum is σ = 87930648. Its totient is φ = 26320896.

The previous prime is 50040379. The next prime is 50040443. The reversal of 50040405 is 50404005.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1347921 + 48692484 = 1161^2 + 6978^2 .

It is not a de Polignac number, because 50040405 - 2⁸ = 50040149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4332 + ... + 10901.

It is an arithmetic number, because the mean of its divisors is an integer number (3663777).

Almost surely, 2^50040405 is an apocalyptic number.

It is an amenable number.

50040405 is a deficient number, since it is larger than the sum of its proper divisors (37890243).

50040405 is a wasteful number, since it uses less digits than its factorization.

50040405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15317 (or 15314 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 50040405 is about 7073.9242998494. The cubic root of 50040405 is about 368.5023586738.

The spelling of 50040405 in words is "fifty million, forty thousand, four hundred five".