550512369 has 63 divisors (see below), whose sum is σ = 918877449. Its totient is φ = 329420520.

The previous prime is 550512301. The next prime is 550512407. The reversal of 550512369 is 963215055.

The square root of 550512369 is 23463.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 550512369 - 2¹³ = 550504177 is a prime.

It is a super-2 number, since 2×550512369² = 606127736843984322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (550512569) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 6968472 + ... + 6968550.

Almost surely, 2^550512369 is an apocalyptic number.

550512369 is the 23463-rd square number.

550512369 is the 11732-nd centered octagonal number.

It is an amenable number.

550512369 is a deficient number, since it is larger than the sum of its proper divisors (368365080).

550512369 is an frugal number, since it uses more digits than its factorization.

550512369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

The cubic root of 550512369 is about 819.5756127401.

Multiplying 550512369 by its sum of digits (36), we get a square (19818445284 = 140778²).

The spelling of 550512369 in words is "five hundred fifty million, five hundred twelve thousand, three hundred sixty-nine".