10655215 has 4 divisors (see below), whose sum is σ = 12786264. Its totient is φ = 8524168.

The previous prime is 10655213. The next prime is 10655231. The reversal of 10655215 is 51255601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51255601 = 59 ⋅868739.

It is a cyclic number.

It is not a de Polignac number, because 10655215 - 2¹ = 10655213 is a prime.

It is a super-2 number, since 2×10655215² = 227067213392450, which contains 22 as substring.

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 10655215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10655213) 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, 1065517 + ... + 1065526.

It is an arithmetic number, because the mean of its divisors is an integer number (3196566).

Almost surely, 2^10655215 is an apocalyptic number.

10655215 is a deficient number, since it is larger than the sum of its proper divisors (2131049).

10655215 is an equidigital number, since it uses as much as digits as its factorization.

10655215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131048.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 10655215 is about 3264.2326816574. The cubic root of 10655215 is about 220.0496788637.

The spelling of 10655215 in words is "ten million, six hundred fifty-five thousand, two hundred fifteen".