550533550 has 48 divisors (see below), whose sum is σ = 1231885440. Its totient is φ = 178817760.

The previous prime is 550533539. The next prime is 550533551. The reversal of 550533550 is 55335055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550533551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34744 + ... + 48043.

It is an arithmetic number, because the mean of its divisors is an integer number (25664280).

Almost surely, 2^550533550 is an apocalyptic number.

550533550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

550533550 is an abundant number, since it is smaller than the sum of its proper divisors (681351890).

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

550533550 is a wasteful number, since it uses less digits than its factorization.

550533550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82825 (or 82820 counting only the distinct ones).

The product of its (nonzero) digits is 28125, while the sum is 31.

The square root of 550533550 is about 23463.4513659010. The cubic root of 550533550 is about 819.5861236807.

The spelling of 550533550 in words is "five hundred fifty million, five hundred thirty-three thousand, five hundred fifty".