550320456 has 64 divisors (see below), whose sum is σ = 1575434880. Its totient is φ = 156925440.

The previous prime is 550320403. The next prime is 550320457. The reversal of 550320456 is 654023055.

It is not an unprimeable number, because it can be changed into a prime (550320457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90636 + ... + 96516.

It is an arithmetic number, because the mean of its divisors is an integer number (24616170).

Almost surely, 2^550320456 is an apocalyptic number.

550320456 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

550320456 is an abundant number, since it is smaller than the sum of its proper divisors (1025114424).

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

550320456 is a wasteful number, since it uses less digits than its factorization.

550320456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6454 (or 6450 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 550320456 is about 23458.9099491004. The cubic root of 550320456 is about 819.4803648073.

The spelling of 550320456 in words is "five hundred fifty million, three hundred twenty thousand, four hundred fifty-six".