550067400 has 72 divisors (see below), whose sum is σ = 1847315730. Its totient is φ = 146684160.

The previous prime is 550067381. The next prime is 550067407. The reversal of 550067400 is 4760055.

It can be written as a sum of positive squares in 3 ways, for example, as 221950404 + 328116996 = 14898^2 + 18114^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (550067407) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 150997 + ... + 154596.

Almost surely, 2^550067400 is an apocalyptic number.

550067400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

550067400 is an abundant number, since it is smaller than the sum of its proper divisors (1297248330).

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

550067400 is a wasteful number, since it uses less digits than its factorization.

550067400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305615 (or 305603 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 550067400 is about 23453.5157279245. The cubic root of 550067400 is about 819.3547372661.

It can be divided in two parts, 5500 and 67400, that added together give a square (72900 = 270²).

The spelling of 550067400 in words is "five hundred fifty million, sixty-seven thousand, four hundred".