1255435432253 has 2 divisors, whose sum is σ = 1255435432254. Its totient is φ = 1255435432252.

The previous prime is 1255435432219. The next prime is 1255435432297. The reversal of 1255435432253 is 3522345345521.

It is an a-pointer prime, because the next prime (1255435432297) can be obtained adding 1255435432253 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1219924668004 + 35510764249 = 1104502^2 + 188443^2 .

It is an emirp because it is prime and its reverse (3522345345521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1255435432253 is a prime.

It is a super-2 number, since 2×1255435432253² (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 (1255435432213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627717716126 + 627717716127.

It is an arithmetic number, because the mean of its divisors is an integer number (627717716127).

Almost surely, 2^{1255435432253} is an apocalyptic number.

It is an amenable number.

1255435432253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255435432253 is an equidigital number, since it uses as much as digits as its factorization.

1255435432253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160000, while the sum is 44.

The spelling of 1255435432253 in words is "one trillion, two hundred fifty-five billion, four hundred thirty-five million, four hundred thirty-two thousand, two hundred fifty-three".