50280513 has 4 divisors (see below), whose sum is σ = 67040688. Its totient is φ = 33520340.

The previous prime is 50280499. The next prime is 50280523. The reversal of 50280513 is 31508205.

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 not a de Polignac number, because 50280513 - 2⁸ = 50280257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50280523) 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, 8380083 + ... + 8380088.

It is an arithmetic number, because the mean of its divisors is an integer number (16760172).

Almost surely, 2^50280513 is an apocalyptic number.

It is an amenable number.

50280513 is a deficient number, since it is larger than the sum of its proper divisors (16760175).

50280513 is a wasteful number, since it uses less digits than its factorization.

50280513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16760174.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 50280513 is about 7090.8753338357. The cubic root of 50280513 is about 369.0908112949.

Adding to 50280513 its reverse (31508205), we get a palindrome (81788718).

The spelling of 50280513 in words is "fifty million, two hundred eighty thousand, five hundred thirteen".