10915855 has 4 divisors (see below), whose sum is σ = 13099032. Its totient is φ = 8732680.

The previous prime is 10915843. The next prime is 10915867. The reversal of 10915855 is 55851901.

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

It is an interprime number because it is at equal distance from previous prime (10915843) and next prime (10915867).

It is not a de Polignac number, because 10915855 - 2¹¹ = 10913807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10915855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1091581 + ... + 1091590.

It is an arithmetic number, because the mean of its divisors is an integer number (3274758).

Almost surely, 2^10915855 is an apocalyptic number.

10915855 is a deficient number, since it is larger than the sum of its proper divisors (2183177).

10915855 is an equidigital number, since it uses as much as digits as its factorization.

10915855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183176.

The product of its (nonzero) digits is 9000, while the sum is 34.

The square root of 10915855 is about 3303.9151018148. The cubic root of 10915855 is about 221.8294756828.

The spelling of 10915855 in words is "ten million, nine hundred fifteen thousand, eight hundred fifty-five".