554494478 has 4 divisors (see below), whose sum is σ = 831741720. Its totient is φ = 277247238.

The previous prime is 554494477. The next prime is 554494517. The reversal of 554494478 is 874494455.

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

It is a super-2 number, since 2×554494478² = 614928252264984968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554494477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138623618 + ... + 138623621.

It is an arithmetic number, because the mean of its divisors is an integer number (207935430).

Almost surely, 2^554494478 is an apocalyptic number.

554494478 is a deficient number, since it is larger than the sum of its proper divisors (277247242).

554494478 is a wasteful number, since it uses less digits than its factorization.

554494478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277247241.

The product of its digits is 3225600, while the sum is 50.

The square root of 554494478 is about 23547.7064275908. The cubic root of 554494478 is about 821.5469894329.

The spelling of 554494478 in words is "five hundred fifty-four million, four hundred ninety-four thousand, four hundred seventy-eight".