15050555054749 has 2 divisors, whose sum is σ = 15050555054750. Its totient is φ = 15050555054748.

The previous prime is 15050555054747. The next prime is 15050555054771. The reversal of 15050555054749 is 94745055505051.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13823843749849 + 1226711304900 = 3718043^2 + 1107570^2 .

It is a cyclic number.

It is not a de Polignac number, because 15050555054749 - 2¹ = 15050555054747 is a prime.

Together with 15050555054747, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 15050555054749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15050555054747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7525277527374 + 7525277527375.

It is an arithmetic number, because the mean of its divisors is an integer number (7525277527375).

Almost surely, 2^{15050555054749} is an apocalyptic number.

It is an amenable number.

15050555054749 is a deficient number, since it is larger than the sum of its proper divisors (1).

15050555054749 is an equidigital number, since it uses as much as digits as its factorization.

15050555054749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15750000, while the sum is 55.

The spelling of 15050555054749 in words is "fifteen trillion, fifty billion, five hundred fifty-five million, fifty-four thousand, seven hundred forty-nine".