254747320265 has 8 divisors (see below), whose sum is σ = 305714771208. Its totient is φ = 203785864960.

The previous prime is 254747320231. The next prime is 254747320271. The reversal of 254747320265 is 562023747452.

It can be written as a sum of positive squares in 4 ways, for example, as 9907415296 + 244839904969 = 99536^2 + 494813^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 254747320265 - 2²² = 254743125961 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1404896 + ... + 1575825.

It is an arithmetic number, because the mean of its divisors is an integer number (38214346401).

Almost surely, 2^254747320265 is an apocalyptic number.

It is an amenable number.

254747320265 is a deficient number, since it is larger than the sum of its proper divisors (50967450943).

254747320265 is a wasteful number, since it uses less digits than its factorization.

254747320265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997819.

The product of its (nonzero) digits is 2822400, while the sum is 47.

The spelling of 254747320265 in words is "two hundred fifty-four billion, seven hundred forty-seven million, three hundred twenty thousand, two hundred sixty-five".