50045755037981 has 2 divisors, whose sum is σ = 50045755037982. Its totient is φ = 50045755037980.

The previous prime is 50045755037969. The next prime is 50045755038031. The reversal of 50045755037981 is 18973055754005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49927522215481 + 118232822500 = 7065941^2 + 343850^2 .

It is a cyclic number.

It is not a de Polignac number, because 50045755037981 - 2³⁸ = 49770877131037 is a prime.

It is a super-2 number, since 2×50045755037981² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 50045755037981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50045755037081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25022877518990 + 25022877518991.

It is an arithmetic number, because the mean of its divisors is an integer number (25022877518991).

Almost surely, 2^{50045755037981} is an apocalyptic number.

It is an amenable number.

50045755037981 is a deficient number, since it is larger than the sum of its proper divisors (1).

50045755037981 is an equidigital number, since it uses as much as digits as its factorization.

50045755037981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460000, while the sum is 59.

The spelling of 50045755037981 in words is "fifty trillion, forty-five billion, seven hundred fifty-five million, thirty-seven thousand, nine hundred eighty-one".