10525581 has 12 divisors (see below), whose sum is σ = 16585920. Its totient is φ = 6379080.

The previous prime is 10525553. The next prime is 10525589. The reversal of 10525581 is 18552501.

10525581 is a `hidden beast` number, since 105 + 2 + 558 + 1 = 666.

It is not a de Polignac number, because 10525581 - 2⁵ = 10525549 is a prime.

It is a super-2 number, since 2×10525581² = 221575710775122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10525589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53061 + ... + 53258.

It is an arithmetic number, because the mean of its divisors is an integer number (1382160).

Almost surely, 2^10525581 is an apocalyptic number.

10525581 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10525581 is a deficient number, since it is larger than the sum of its proper divisors (6060339).

10525581 is a wasteful number, since it uses less digits than its factorization.

10525581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106336 (or 106333 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The square root of 10525581 is about 3244.3151819760. The cubic root of 10525581 is about 219.1536421071.

The spelling of 10525581 in words is "ten million, five hundred twenty-five thousand, five hundred eighty-one".