550945291 has 8 divisors (see below), whose sum is σ = 594044640. Its totient is φ = 507948672.

The previous prime is 550945271. The next prime is 550945309. The reversal of 550945291 is 192549055.

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

It is a cyclic number.

It is not a de Polignac number, because 550945291 - 2²⁵ = 517390859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550945271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14350 + ... + 36163.

It is an arithmetic number, because the mean of its divisors is an integer number (74255580).

Almost surely, 2^550945291 is an apocalyptic number.

550945291 is a deficient number, since it is larger than the sum of its proper divisors (43099349).

550945291 is a wasteful number, since it uses less digits than its factorization.

550945291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51365.

The product of its (nonzero) digits is 81000, while the sum is 40.

The square root of 550945291 is about 23472.2238188034. The cubic root of 550945291 is about 819.7903940759.

The spelling of 550945291 in words is "five hundred fifty million, nine hundred forty-five thousand, two hundred ninety-one".