1505050561369 has 2 divisors, whose sum is σ = 1505050561370. Its totient is φ = 1505050561368.

The previous prime is 1505050561349. The next prime is 1505050561381. The reversal of 1505050561369 is 9631650505051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1109466169344 + 395584392025 = 1053312^2 + 628955^2 .

It is an emirp because it is prime and its reverse (9631650505051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1505050561369 - 2¹⁵ = 1505050528601 is a prime.

It is a super-2 number, since 2×1505050561369² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1505050561349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 752525280684 + 752525280685.

It is an arithmetic number, because the mean of its divisors is an integer number (752525280685).

Almost surely, 2^{1505050561369} is an apocalyptic number.

It is an amenable number.

1505050561369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1505050561369 is an equidigital number, since it uses as much as digits as its factorization.

1505050561369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 607500, while the sum is 46.

The spelling of 1505050561369 in words is "one trillion, five hundred five billion, fifty million, five hundred sixty-one thousand, three hundred sixty-nine".