50145112309 has 4 divisors (see below), whose sum is σ = 50171409504. Its totient is φ = 50118815116.

The previous prime is 50145112307. The next prime is 50145112363. The reversal of 50145112309 is 90321154105.

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 50145112309 - 2¹ = 50145112307 is a prime.

It is a super-2 number, since 2×50145112309² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50145112307) 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, 13145737 + ... + 13149550.

It is an arithmetic number, because the mean of its divisors is an integer number (12542852376).

Almost surely, 2^50145112309 is an apocalyptic number.

It is an amenable number.

50145112309 is a deficient number, since it is larger than the sum of its proper divisors (26297195).

50145112309 is a wasteful number, since it uses less digits than its factorization.

50145112309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26297194.

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 50145112309 in words is "fifty billion, one hundred forty-five million, one hundred twelve thousand, three hundred nine".