550515011 has 4 divisors (see below), whose sum is σ = 551694312. Its totient is φ = 549335712.

The previous prime is 550515001. The next prime is 550515023. The reversal of 550515011 is 110515055.

It is a happy number.

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-550515011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550515001) 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, 588950 + ... + 589883.

It is an arithmetic number, because the mean of its divisors is an integer number (137923578).

Almost surely, 2^550515011 is an apocalyptic number.

550515011 is a deficient number, since it is larger than the sum of its proper divisors (1179301).

550515011 is a wasteful number, since it uses less digits than its factorization.

550515011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179300.

The product of its (nonzero) digits is 625, while the sum is 23.

The square root of 550515011 is about 23463.0563013432. The cubic root of 550515011 is about 819.5769238310.

The spelling of 550515011 in words is "five hundred fifty million, five hundred fifteen thousand, eleven".