550040251 has 4 divisors (see below), whose sum is σ = 550412632. Its totient is φ = 549667872.

The previous prime is 550040209. The next prime is 550040263. The reversal of 550040251 is 152040055.

550040251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 550040251 - 2⁷ = 550040123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550040951) 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, 183966 + ... + 186931.

It is an arithmetic number, because the mean of its divisors is an integer number (137603158).

Almost surely, 2^550040251 is an apocalyptic number.

550040251 is a deficient number, since it is larger than the sum of its proper divisors (372381).

550040251 is a wasteful number, since it uses less digits than its factorization.

550040251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372380.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 550040251 is about 23452.9369376204. The cubic root of 550040251 is about 819.3412570831.

The spelling of 550040251 in words is "five hundred fifty million, forty thousand, two hundred fifty-one".