1250544405413 has 2 divisors, whose sum is σ = 1250544405414. Its totient is φ = 1250544405412.

The previous prime is 1250544405371. The next prime is 1250544405469. The reversal of 1250544405413 is 3145044450521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 659186481409 + 591357924004 = 811903^2 + 768998^2 .

It is a cyclic number.

It is not a de Polignac number, because 1250544405413 - 2²⁴ = 1250527628197 is a prime.

It is a super-2 number, since 2×1250544405413² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1250544405713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625272202706 + 625272202707.

It is an arithmetic number, because the mean of its divisors is an integer number (625272202707).

Almost surely, 2^{1250544405413} is an apocalyptic number.

It is an amenable number.

1250544405413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250544405413 is an equidigital number, since it uses as much as digits as its factorization.

1250544405413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 1250544405413 its reverse (3145044450521), we get a palindrome (4395588855934).

The spelling of 1250544405413 in words is "one trillion, two hundred fifty billion, five hundred forty-four million, four hundred five thousand, four hundred thirteen".