50504013 has 16 divisors (see below), whose sum is σ = 85509760. Its totient is φ = 28859328.

The previous prime is 50504009. The next prime is 50504017. The reversal of 50504013 is 31040505.

It is an interprime number because it is at equal distance from previous prime (50504009) and next prime (50504017).

It is not a de Polignac number, because 50504013 - 2² = 50504009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50504017) 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, 133420 + ... + 133797.

It is an arithmetic number, because the mean of its divisors is an integer number (5344360).

Almost surely, 2^50504013 is an apocalyptic number.

It is an amenable number.

50504013 is a deficient number, since it is larger than the sum of its proper divisors (35005747).

50504013 is a wasteful number, since it uses less digits than its factorization.

50504013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267233 (or 267227 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 50504013 is about 7106.6175498615. The cubic root of 50504013 is about 369.6368801746.

Adding to 50504013 its reverse (31040505), we get a palindrome (81544518).

The spelling of 50504013 in words is "fifty million, five hundred four thousand, thirteen".