50405403 has 6 divisors (see below), whose sum is σ = 67223604. Its totient is φ = 33595404.

The previous prime is 50405401. The next prime is 50405437. The reversal of 50405403 is 30450405.

It is a happy number.

It is not a de Polignac number, because 50405403 - 2¹ = 50405401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50405403.

It is not an unprimeable number, because it can be changed into a prime (50405401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10248 + ... + 14346.

It is an arithmetic number, because the mean of its divisors is an integer number (11203934).

Almost surely, 2^50405403 is an apocalyptic number.

50405403 is a deficient number, since it is larger than the sum of its proper divisors (16818201).

50405403 is an frugal number, since it uses more digits than its factorization.

50405403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8201 (or 4102 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 50405403 is about 7099.6762602248. The cubic root of 50405403 is about 369.3961491952.

Multiplying 50405403 by its product of nonzero digits (1200), we get a square (60486483600 = 245940²).

Adding to 50405403 its reverse (30450405), we get a palindrome (80855808).

The spelling of 50405403 in words is "fifty million, four hundred five thousand, four hundred three".