255172453 has 2 divisors, whose sum is σ = 255172454. Its totient is φ = 255172452.

The previous prime is 255172429. The next prime is 255172457. The reversal of 255172453 is 354271552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181521729 + 73650724 = 13473^2 + 8582^2 .

It is a cyclic number.

It is not a de Polignac number, because 255172453 - 2²⁵ = 221618021 is a prime.

It is a super-2 number, since 2×255172453² = 130225961540074418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255172457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127586226 + 127586227.

It is an arithmetic number, because the mean of its divisors is an integer number (127586227).

Almost surely, 2^255172453 is an apocalyptic number.

It is an amenable number.

255172453 is a deficient number, since it is larger than the sum of its proper divisors (1).

255172453 is an equidigital number, since it uses as much as digits as its factorization.

255172453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42000, while the sum is 34.

The square root of 255172453 is about 15974.1182229255. The cubic root of 255172453 is about 634.2754900431.

Subtracting 255172453 from its reverse (354271552), we obtain a palindrome (99099099).

The spelling of 255172453 in words is "two hundred fifty-five million, one hundred seventy-two thousand, four hundred fifty-three".