50530513 has 4 divisors (see below), whose sum is σ = 55124208. Its totient is φ = 45936820.

The previous prime is 50530457. The next prime is 50530523. The reversal of 50530513 is 31503505.

It is a happy number.

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-50530513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50530523) 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, 2296831 + ... + 2296852.

It is an arithmetic number, because the mean of its divisors is an integer number (13781052).

Almost surely, 2^50530513 is an apocalyptic number.

It is an amenable number.

50530513 is a deficient number, since it is larger than the sum of its proper divisors (4593695).

50530513 is a wasteful number, since it uses less digits than its factorization.

50530513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4593694.

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 50530513 is about 7108.4817647652. The cubic root of 50530513 is about 369.7015196887.

The spelling of 50530513 in words is "fifty million, five hundred thirty thousand, five hundred thirteen".