550397290 has 8 divisors (see below), whose sum is σ = 990715140. Its totient is φ = 220158912.

The previous prime is 550397279. The next prime is 550397329. The reversal of 550397290 is 92793055.

It can be written as a sum of positive squares in 2 ways, for example, as 547232449 + 3164841 = 23393^2 + 1779^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27519855 + ... + 27519874.

Almost surely, 2^550397290 is an apocalyptic number.

550397290 is a deficient number, since it is larger than the sum of its proper divisors (440317850).

550397290 is a wasteful number, since it uses less digits than its factorization.

550397290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55039736.

The product of its (nonzero) digits is 85050, while the sum is 40.

The square root of 550397290 is about 23460.5475213176. The cubic root of 550397290 is about 819.5185007840.

The spelling of 550397290 in words is "five hundred fifty million, three hundred ninety-seven thousand, two hundred ninety".