10056581 has 4 divisors (see below), whose sum is σ = 10064832. Its totient is φ = 10048332.

The previous prime is 10056577. The next prime is 10056583. The reversal of 10056581 is 18565001.

10056581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 10056581 - 2² = 10056577 is a prime.

It is a super-2 number, since 2×10056581² = 202269642819122, 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 10056581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10056583) 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, 1895 + ... + 4868.

It is an arithmetic number, because the mean of its divisors is an integer number (2516208).

Almost surely, 2^10056581 is an apocalyptic number.

It is an amenable number.

10056581 is a deficient number, since it is larger than the sum of its proper divisors (8251).

10056581 is an equidigital number, since it uses as much as digits as its factorization.

10056581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8250.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 10056581 is about 3171.2112827751. The cubic root of 10056581 is about 215.8490386084.

The spelling of 10056581 in words is "ten million, fifty-six thousand, five hundred eighty-one".