254705115551 has 16 divisors (see below), whose sum is σ = 264001689600. Its totient is φ = 245443268448.

The previous prime is 254705115451. The next prime is 254705115571. The reversal of 254705115551 is 155511507452.

It is a cyclic number.

It is not a de Polignac number, because 254705115551 - 2³⁴ = 237525246367 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 254705115499 and 254705115508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254705115571) 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 15 ways as a sum of consecutive naturals, for example, 41979020 + ... + 41985086.

It is an arithmetic number, because the mean of its divisors is an integer number (16500105600).

Almost surely, 2^254705115551 is an apocalyptic number.

254705115551 is a deficient number, since it is larger than the sum of its proper divisors (9296574049).

254705115551 is a wasteful number, since it uses less digits than its factorization.

254705115551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8678.

The product of its (nonzero) digits is 175000, while the sum is 41.

The spelling of 254705115551 in words is "two hundred fifty-four billion, seven hundred five million, one hundred fifteen thousand, five hundred fifty-one".