10561535 has 4 divisors (see below), whose sum is σ = 12673848. Its totient is φ = 8449224.

The previous prime is 10561519. The next prime is 10561543. The reversal of 10561535 is 53516501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53516501 = 89 ⋅601309.

It is a cyclic number.

It is not a de Polignac number, because 10561535 - 2⁴ = 10561519 is a prime.

It is a super-2 number, since 2×10561535² = 223092043112450, which contains 22 as substring.

It is a Duffinian number.

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, 1056149 + ... + 1056158.

It is an arithmetic number, because the mean of its divisors is an integer number (3168462).

Almost surely, 2^10561535 is an apocalyptic number.

10561535 is a deficient number, since it is larger than the sum of its proper divisors (2112313).

10561535 is an equidigital number, since it uses as much as digits as its factorization.

10561535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112312.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 10561535 is about 3249.8515350705. The cubic root of 10561535 is about 219.4028918576.

The spelling of 10561535 in words is "ten million, five hundred sixty-one thousand, five hundred thirty-five".