10042565 has 8 divisors (see below), whose sum is σ = 12978168. Its totient is φ = 7416000.

The previous prime is 10042553. The next prime is 10042579. The reversal of 10042565 is 56524001.

10042565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1481089 + 8561476 = 1217^2 + 2926^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10042565 - 2⁸ = 10042309 is a prime.

It is a super-2 number, since 2×10042565² = 201706223558450, 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 10042565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77186 + ... + 77315.

It is an arithmetic number, because the mean of its divisors is an integer number (1622271).

Almost surely, 2^10042565 is an apocalyptic number.

It is an amenable number.

10042565 is a deficient number, since it is larger than the sum of its proper divisors (2935603).

10042565 is a wasteful number, since it uses less digits than its factorization.

10042565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154519.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 10042565 is about 3169.0006311139. Note that the first 3 decimals coincide. The cubic root of 10042565 is about 215.7487146945.

Adding to 10042565 its reverse (56524001), we get a palindrome (66566566).

The spelling of 10042565 in words is "ten million, forty-two thousand, five hundred sixty-five".