1255072090001 has 4 divisors (see below), whose sum is σ = 1255075681332. Its totient is φ = 1255068498672.

The previous prime is 1255072089937. The next prime is 1255072090009. The reversal of 1255072090001 is 1000902705521.

It is a happy number.

It is a Cunningham number, because it is equal to 1120300²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 901314789376 + 353757300625 = 949376^2 + 594775^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255072090001 - 2⁶ = 1255072089937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1255072090001.

It is not an unprimeable number, because it can be changed into a prime (1255072090009) 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, 1207166 + ... + 1991831.

It is an arithmetic number, because the mean of its divisors is an integer number (313768920333).

Almost surely, 2^{1255072090001} is an apocalyptic number.

It is an amenable number.

1255072090001 is a deficient number, since it is larger than the sum of its proper divisors (3591331).

1255072090001 is an equidigital number, since it uses as much as digits as its factorization.

1255072090001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3591330.

The product of its (nonzero) digits is 6300, while the sum is 32.

Adding to 1255072090001 its reverse (1000902705521), we get a palindrome (2255974795522).

The spelling of 1255072090001 in words is "one trillion, two hundred fifty-five billion, seventy-two million, ninety thousand, one".