254236431551 has 4 divisors (see below), whose sum is σ = 254285526600. Its totient is φ = 254187336504.

The previous prime is 254236431517. The next prime is 254236431563. The reversal of 254236431551 is 155134632452.

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 254236431551 - 2³⁴ = 237056562367 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 254236431499 and 254236431508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254236431511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24539756 + ... + 24550113.

It is an arithmetic number, because the mean of its divisors is an integer number (63571381650).

Almost surely, 2^254236431551 is an apocalyptic number.

254236431551 is a deficient number, since it is larger than the sum of its proper divisors (49095049).

254236431551 is an equidigital number, since it uses as much as digits as its factorization.

254236431551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49095048.

The product of its digits is 432000, while the sum is 41.

The spelling of 254236431551 in words is "two hundred fifty-four billion, two hundred thirty-six million, four hundred thirty-one thousand, five hundred fifty-one".