50404513 has 4 divisors (see below), whose sum is σ = 50444848. Its totient is φ = 50364180.

The previous prime is 50404499. The next prime is 50404531. The reversal of 50404513 is 31540405.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50404513 is a prime.

It is a super-2 number, since 2×50404513² = 5081229861534338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50404573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18231 + ... + 20812.

It is an arithmetic number, because the mean of its divisors is an integer number (12611212).

Almost surely, 2^50404513 is an apocalyptic number.

It is an amenable number.

50404513 is a deficient number, since it is larger than the sum of its proper divisors (40335).

50404513 is a wasteful number, since it uses less digits than its factorization.

50404513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40334.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 50404513 is about 7099.6135810338. The cubic root of 50404513 is about 369.3939750598.

Adding to 50404513 its reverse (31540405), we get a palindrome (81944918).

The spelling of 50404513 in words is "fifty million, four hundred four thousand, five hundred thirteen".