550809151 has 4 divisors (see below), whose sum is σ = 569802600. Its totient is φ = 531815704.

The previous prime is 550809139. The next prime is 550809169. The reversal of 550809151 is 151908055.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550809151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550809101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9496681 + ... + 9496738.

It is an arithmetic number, because the mean of its divisors is an integer number (142450650).

Almost surely, 2^550809151 is an apocalyptic number.

550809151 is a deficient number, since it is larger than the sum of its proper divisors (18993449).

550809151 is a wasteful number, since it uses less digits than its factorization.

550809151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18993448.

The product of its (nonzero) digits is 9000, while the sum is 34.

The square root of 550809151 is about 23469.3236161590. The cubic root of 550809151 is about 819.7228644076.

The spelling of 550809151 in words is "five hundred fifty million, eight hundred nine thousand, one hundred fifty-one".