254505451 has 2 divisors, whose sum is σ = 254505452. Its totient is φ = 254505450.

The previous prime is 254505403. The next prime is 254505509. The reversal of 254505451 is 154505452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 254505451 - 2¹⁵ = 254472683 is a prime.

It is not a weakly prime, because it can be changed into another prime (254505401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127252725 + 127252726.

It is an arithmetic number, because the mean of its divisors is an integer number (127252726).

Almost surely, 2^254505451 is an apocalyptic number.

254505451 is the 7135-th centered decagonal number.

254505451 is a deficient number, since it is larger than the sum of its proper divisors (1).

254505451 is an equidigital number, since it uses as much as digits as its factorization.

254505451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 254505451 is about 15953.2269776368. The cubic root of 254505451 is about 633.7223580073.

Subtracting from 254505451 its reverse (154505452), we obtain a palindrome (99999999).

The spelling of 254505451 in words is "two hundred fifty-four million, five hundred five thousand, four hundred fifty-one".