554778 has 72 divisors (see below), whose sum is σ = 1520532. Its totient is φ = 145152.

The previous prime is 554767. The next prime is 554779. The reversal of 554778 is 877455.

554778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 480249 + 74529 = 693^2 + 273^2 .

It is not an unprimeable number, because it can be changed into a prime (554779) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 14976 + ... + 15012.

2⁵⁵⁴⁷⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 554778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (760266).

554778 is an abundant number, since it is smaller than the sum of its proper divisors (965754).

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

554778 is a wasteful number, since it uses less digits than its factorization.

554778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 66 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The square root of 554778 is about 744.8342097407. The cubic root of 554778 is about 82.1686988998.

It can be divided in two parts, 5547 and 78, that added together give a square (5625 = 75²).

The spelling of 554778 in words is "five hundred fifty-four thousand, seven hundred seventy-eight".