550023550 has 24 divisors (see below), whose sum is σ = 1023831792. Its totient is φ = 219840000.

The previous prime is 550023521. The next prime is 550023577. The reversal of 550023550 is 55320055.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76615 + ... + 83485.

It is an arithmetic number, because the mean of its divisors is an integer number (42659658).

Almost surely, 2^550023550 is an apocalyptic number.

550023550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

550023550 is a deficient number, since it is larger than the sum of its proper divisors (473808242).

550023550 is a wasteful number, since it uses less digits than its factorization.

550023550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8484 (or 8479 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 25.

The square root of 550023550 is about 23452.5808814297. The cubic root of 550023550 is about 819.3329643828.

The spelling of 550023550 in words is "five hundred fifty million, twenty-three thousand, five hundred fifty".