254560478 has 4 divisors (see below), whose sum is σ = 381840720. Its totient is φ = 127280238.

The previous prime is 254560477. The next prime is 254560487. The reversal of 254560478 is 874065452.

254560478 is nontrivially palindromic in base 9.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254560477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63640118 + ... + 63640121.

It is an arithmetic number, because the mean of its divisors is an integer number (95460180).

Almost surely, 2^254560478 is an apocalyptic number.

254560478 is a deficient number, since it is larger than the sum of its proper divisors (127280242).

254560478 is a wasteful number, since it uses less digits than its factorization.

254560478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127280241.

The product of its (nonzero) digits is 268800, while the sum is 41.

The square root of 254560478 is about 15954.9515198261. The cubic root of 254560478 is about 633.7680273989.

The spelling of 254560478 in words is "two hundred fifty-four million, five hundred sixty thousand, four hundred seventy-eight".