254561624453 has 2 divisors, whose sum is σ = 254561624454. Its totient is φ = 254561624452.

The previous prime is 254561624437. The next prime is 254561624461. The reversal of 254561624453 is 354426165452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 239427211969 + 15134412484 = 489313^2 + 123022^2 .

It is a cyclic number.

It is not a de Polignac number, because 254561624453 - 2⁴ = 254561624437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 254561624398 and 254561624407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254561624483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127280812226 + 127280812227.

It is an arithmetic number, because the mean of its divisors is an integer number (127280812227).

Almost surely, 2^254561624453 is an apocalyptic number.

It is an amenable number.

254561624453 is a deficient number, since it is larger than the sum of its proper divisors (1).

254561624453 is an equidigital number, since it uses as much as digits as its factorization.

254561624453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456000, while the sum is 47.

The spelling of 254561624453 in words is "two hundred fifty-four billion, five hundred sixty-one million, six hundred twenty-four thousand, four hundred fifty-three".