550133251 has 4 divisors (see below), whose sum is σ = 574052112. Its totient is φ = 526214392.

The previous prime is 550133191. The next prime is 550133263. The reversal of 550133251 is 152331055.

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

It is a cyclic number.

It is not a de Polignac number, because 550133251 - 2⁷ = 550133123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550131251) 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, 11959396 + ... + 11959441.

It is an arithmetic number, because the mean of its divisors is an integer number (143513028).

Almost surely, 2^550133251 is an apocalyptic number.

550133251 is a deficient number, since it is larger than the sum of its proper divisors (23918861).

550133251 is a wasteful number, since it uses less digits than its factorization.

550133251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23918860.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 550133251 is about 23454.9195479328. The cubic root of 550133251 is about 819.3874321540.

The spelling of 550133251 in words is "five hundred fifty million, one hundred thirty-three thousand, two hundred fifty-one".