50412513 has 4 divisors (see below), whose sum is σ = 67216688. Its totient is φ = 33608340.

The previous prime is 50412503. The next prime is 50412521. The reversal of 50412513 is 31521405.

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 not a de Polignac number, because 50412513 - 2¹⁰ = 50411489 is a prime.

It is a super-3 number, since 3×50412513³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50412513.

It is not an unprimeable number, because it can be changed into a prime (50412503) 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, 8402083 + ... + 8402088.

It is an arithmetic number, because the mean of its divisors is an integer number (16804172).

Almost surely, 2^50412513 is an apocalyptic number.

It is an amenable number.

50412513 is a deficient number, since it is larger than the sum of its proper divisors (16804175).

50412513 is a wasteful number, since it uses less digits than its factorization.

50412513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16804174.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 50412513 is about 7100.1769696255. The cubic root of 50412513 is about 369.4135169308.

Adding to 50412513 its reverse (31521405), we get a palindrome (81933918).

The spelling of 50412513 in words is "fifty million, four hundred twelve thousand, five hundred thirteen".