254563424251 has 4 divisors (see below), whose sum is σ = 254572680832. Its totient is φ = 254554167672.

The previous prime is 254563424249. The next prime is 254563424263. The reversal of 254563424251 is 152424365452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 254563424251 - 2¹ = 254563424249 is a prime.

It is a super-2 number, since 2×254563424251² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 254563424198 and 254563424207.

It is not an unprimeable number, because it can be changed into a prime (254563424551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4586916 + ... + 4642081.

It is an arithmetic number, because the mean of its divisors is an integer number (63643170208).

Almost surely, 2^254563424251 is an apocalyptic number.

254563424251 is a deficient number, since it is larger than the sum of its proper divisors (9256581).

254563424251 is an equidigital number, since it uses as much as digits as its factorization.

254563424251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9256580.

The product of its digits is 1152000, while the sum is 43.

The spelling of 254563424251 in words is "two hundred fifty-four billion, five hundred sixty-three million, four hundred twenty-four thousand, two hundred fifty-one".