10513665 has 32 divisors (see below), whose sum is σ = 19100160. Its totient is φ = 5484672.

The previous prime is 10513649. The next prime is 10513687. The reversal of 10513665 is 56631501.

It is a happy number.

It is not a de Polignac number, because 10513665 - 2⁴ = 10513649 is a prime.

It is a super-2 number, since 2×10513665² = 221074303464450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5517 + ... + 7173.

It is an arithmetic number, because the mean of its divisors is an integer number (596880).

Almost surely, 2^10513665 is an apocalyptic number.

10513665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10513665 is a deficient number, since it is larger than the sum of its proper divisors (8586495).

10513665 is a wasteful number, since it uses less digits than its factorization.

10513665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1718 (or 1712 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 10513665 is about 3242.4782188937. The cubic root of 10513665 is about 219.0709096706.

The spelling of 10513665 in words is "ten million, five hundred thirteen thousand, six hundred sixty-five".