1254534400253 has 2 divisors, whose sum is σ = 1254534400254. Its totient is φ = 1254534400252.

The previous prime is 1254534400243. The next prime is 1254534400261. The reversal of 1254534400253 is 3520044354521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 994722980164 + 259811420089 = 997358^2 + 509717^2 .

It is an emirp because it is prime and its reverse (3520044354521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1254534400253 - 2⁴ = 1254534400237 is a prime.

It is a super-2 number, since 2×1254534400253² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1254534400243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627267200126 + 627267200127.

It is an arithmetic number, because the mean of its divisors is an integer number (627267200127).

Almost surely, 2^{1254534400253} is an apocalyptic number.

It is an amenable number.

1254534400253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254534400253 is an equidigital number, since it uses as much as digits as its factorization.

1254534400253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 1254534400253 its reverse (3520044354521), we get a palindrome (4774578754774).

The spelling of 1254534400253 in words is "one trillion, two hundred fifty-four billion, five hundred thirty-four million, four hundred thousand, two hundred fifty-three".