50312405 has 24 divisors (see below), whose sum is σ = 71478456. Its totient is φ = 33770880.

The previous prime is 50312393. The next prime is 50312407. The reversal of 50312405 is 50421305.

It can be written as a sum of positive squares in 4 ways, for example, as 2439844 + 47872561 = 1562^2 + 6919^2 .

It is not a de Polignac number, because 50312405 - 2²² = 46118101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50312407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4667 + ... + 11063.

It is an arithmetic number, because the mean of its divisors is an integer number (2978269).

Almost surely, 2^50312405 is an apocalyptic number.

50312405 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

50312405 is a deficient number, since it is larger than the sum of its proper divisors (21166051).

50312405 is a wasteful number, since it uses less digits than its factorization.

50312405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6437 (or 6426 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 50312405 is about 7093.1237829323. The cubic root of 50312405 is about 369.1688306282.

Subtracting 50312405 from its reverse (50421305), we obtain a square (108900 = 330²).

The spelling of 50312405 in words is "fifty million, three hundred twelve thousand, four hundred five".