254904257 has 4 divisors (see below), whose sum is σ = 261121476. Its totient is φ = 248687040.

The previous prime is 254904253. The next prime is 254904259. The reversal of 254904257 is 752409452.

254904257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 39137536 + 215766721 = 6256^2 + 14689^2 .

It is a cyclic number.

It is not a de Polignac number, because 254904257 - 2² = 254904253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 254904257.

It is not an unprimeable number, because it can be changed into a prime (254904253) 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, 3108548 + ... + 3108629.

It is an arithmetic number, because the mean of its divisors is an integer number (65280369).

Almost surely, 2^254904257 is an apocalyptic number.

It is an amenable number.

254904257 is a deficient number, since it is larger than the sum of its proper divisors (6217219).

254904257 is an equidigital number, since it uses as much as digits as its factorization.

254904257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6217218.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 254904257 is about 15965.7213116101. The cubic root of 254904257 is about 634.0531962184.

The spelling of 254904257 in words is "two hundred fifty-four million, nine hundred four thousand, two hundred fifty-seven".