551494659 has 4 divisors (see below), whose sum is σ = 735326216. Its totient is φ = 367663104.

The previous prime is 551494639. The next prime is 551494661. The reversal of 551494659 is 956494155.

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

It is not a de Polignac number, because 551494659 - 2¹⁵ = 551461891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551494639) 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, 91915774 + ... + 91915779.

It is an arithmetic number, because the mean of its divisors is an integer number (183831554).

Almost surely, 2^551494659 is an apocalyptic number.

551494659 is a deficient number, since it is larger than the sum of its proper divisors (183831557).

551494659 is a wasteful number, since it uses less digits than its factorization.

551494659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183831556.

The product of its digits is 972000, while the sum is 48.

The square root of 551494659 is about 23483.9234158179. The cubic root of 551494659 is about 820.0627847029.

The spelling of 551494659 in words is "five hundred fifty-one million, four hundred ninety-four thousand, six hundred fifty-nine".