254404001 has 4 divisors (see below), whose sum is σ = 254558100. Its totient is φ = 254249904.

The previous prime is 254403967. The next prime is 254404021. The reversal of 254404001 is 100404452.

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 114597025 + 139806976 = 10705^2 + 11824^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254404001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254404021) 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, 74546 + ... + 77883.

It is an arithmetic number, because the mean of its divisors is an integer number (63639525).

Almost surely, 2^254404001 is an apocalyptic number.

It is an amenable number.

254404001 is a deficient number, since it is larger than the sum of its proper divisors (154099).

254404001 is a wasteful number, since it uses less digits than its factorization.

254404001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154098.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 254404001 is about 15950.0470532221. The cubic root of 254404001 is about 633.6381428136.

Adding to 254404001 its reverse (100404452), we get a palindrome (354808453).

The spelling of 254404001 in words is "two hundred fifty-four million, four hundred four thousand, one".