254240055420401 has 4 divisors (see below), whose sum is σ = 254240669086692. Its totient is φ = 254239441754112.

The previous prime is 254240055420343. The next prime is 254240055420427. The reversal of 254240055420401 is 104024550042452.

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

It can be written as a sum of positive squares in 2 ways, for example, as 121303790440000 + 132936264980401 = 11013800^2 + 11529799^2 .

It is a cyclic number.

It is not a de Polignac number, because 254240055420401 - 2²² = 254240051226097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254240055422401) 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, 306211280 + ... + 307040433.

It is an arithmetic number, because the mean of its divisors is an integer number (63560167271673).

Almost surely, 2^{254240055420401} is an apocalyptic number.

It is an amenable number.

254240055420401 is a deficient number, since it is larger than the sum of its proper divisors (613666291).

254240055420401 is an equidigital number, since it uses as much as digits as its factorization.

254240055420401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613666290.

The product of its (nonzero) digits is 256000, while the sum is 38.

The spelling of 254240055420401 in words is "two hundred fifty-four trillion, two hundred forty billion, fifty-five million, four hundred twenty thousand, four hundred one".