50168061502621 has 4 divisors (see below), whose sum is σ = 50389066179072. Its totient is φ = 49947056826172.

The previous prime is 50168061502607. The next prime is 50168061502667. The reversal of 50168061502621 is 12620516086105.

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 50168061502621 - 2²¹ = 50168059405469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50168061502681) 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, 110502337885 + ... + 110502338338.

It is an arithmetic number, because the mean of its divisors is an integer number (12597266544768).

Almost surely, 2^{50168061502621} is an apocalyptic number.

It is an amenable number.

50168061502621 is a deficient number, since it is larger than the sum of its proper divisors (221004676451).

50168061502621 is a wasteful number, since it uses less digits than its factorization.

50168061502621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221004676450.

The product of its (nonzero) digits is 172800, while the sum is 43.

Adding to 50168061502621 its reverse (12620516086105), we get a palindrome (62788577588726).

The spelling of 50168061502621 in words is "fifty trillion, one hundred sixty-eight billion, sixty-one million, five hundred two thousand, six hundred twenty-one".