554199978 has 16 divisors (see below), whose sum is σ = 1108673280. Its totient is φ = 184687776.

The previous prime is 554199977. The next prime is 554200007. The reversal of 554199978 is 879991455.

It is not an unprimeable number, because it can be changed into a prime (554199977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22926 + ... + 40422.

It is an arithmetic number, because the mean of its divisors is an integer number (69292080).

Almost surely, 2^554199978 is an apocalyptic number.

554199978 is an abundant number, since it is smaller than the sum of its proper divisors (554473302).

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

554199978 is a wasteful number, since it uses less digits than its factorization.

554199978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22781.

The product of its digits is 4082400, while the sum is 57.

The square root of 554199978 is about 23541.4523341276. The cubic root of 554199978 is about 821.4015185315.

The spelling of 554199978 in words is "five hundred fifty-four million, one hundred ninety-nine thousand, nine hundred seventy-eight".