5554889478 has 12 divisors (see below), whose sum is σ = 12035593908. Its totient is φ = 1851629820.

The previous prime is 5554889447. The next prime is 5554889479. The reversal of 5554889478 is 8749884555.

5554889478 is a `hidden beast` number, since 5 + 5 + 548 + 89 + 4 + 7 + 8 = 666.

It is a super-2 number, since 2×5554889478² = 61713594225590224968, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5554889479) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 154302468 + ... + 154302503.

It is an arithmetic number, because the mean of its divisors is an integer number (1002966159).

Almost surely, 2^5554889478 is an apocalyptic number.

5554889478 is an abundant number, since it is smaller than the sum of its proper divisors (6480704430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5554889478 is a wasteful number, since it uses less digits than its factorization.

5554889478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308604979 (or 308604976 counting only the distinct ones).

The product of its digits is 64512000, while the sum is 63.

The square root of 5554889478 is about 74531.1309319804. The cubic root of 5554889478 is about 1771.0268311732.

The spelling of 5554889478 in words is "five billion, five hundred fifty-four million, eight hundred eighty-nine thousand, four hundred seventy-eight".