550815689087 has 4 divisors (see below), whose sum is σ = 550833675096. Its totient is φ = 550797703080.

The previous prime is 550815689077. The next prime is 550815689117. The reversal of 550815689087 is 780986518055.

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 550815689087 - 2³⁸ = 275937782143 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 (550815689057) 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, 8946989 + ... + 9008342.

It is an arithmetic number, because the mean of its divisors is an integer number (137708418774).

Almost surely, 2^550815689087 is an apocalyptic number.

550815689087 is a deficient number, since it is larger than the sum of its proper divisors (17986009).

550815689087 is a wasteful number, since it uses less digits than its factorization.

550815689087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17986008.

The product of its (nonzero) digits is 24192000, while the sum is 62.

The spelling of 550815689087 in words is "five hundred fifty billion, eight hundred fifteen million, six hundred eighty-nine thousand, eighty-seven".