10550550515 has 4 divisors (see below), whose sum is σ = 12660660624. Its totient is φ = 8440440408.

The previous prime is 10550550511. The next prime is 10550550587. The reversal of 10550550515 is 51505505501.

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 10550550515 - 2² = 10550550511 is a prime.

It is a super-2 number, since 2×10550550515² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10550550511) 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, 1055055047 + ... + 1055055056.

It is an arithmetic number, because the mean of its divisors is an integer number (3165165156).

Almost surely, 2^10550550515 is an apocalyptic number.

10550550515 is a deficient number, since it is larger than the sum of its proper divisors (2110110109).

10550550515 is an equidigital number, since it uses as much as digits as its factorization.

10550550515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110110108.

The product of its (nonzero) digits is 15625, while the sum is 32.

The spelling of 10550550515 in words is "ten billion, five hundred fifty million, five hundred fifty thousand, five hundred fifteen".