10506855 has 16 divisors (see below), whose sum is σ = 16942464. Its totient is φ = 5559840.

The previous prime is 10506841. The next prime is 10506857. The reversal of 10506855 is 55860501.

It is a happy number.

It is not a de Polignac number, because 10506855 - 2⁸ = 10506599 is a prime.

It is a super-2 number, since 2×10506855² = 220788003982050, which contains 22 as substring.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10506857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 709 + ... + 4638.

It is an arithmetic number, because the mean of its divisors is an integer number (1058904).

Almost surely, 2^10506855 is an apocalyptic number.

10506855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10506855 is a deficient number, since it is larger than the sum of its proper divisors (6435609).

10506855 is a wasteful number, since it uses less digits than its factorization.

10506855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5486.

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 10506855 is about 3241.4279260844. The cubic root of 10506855 is about 219.0235999671.

The spelling of 10506855 in words is "ten million, five hundred six thousand, eight hundred fifty-five".