10055861 has 4 divisors (see below), whose sum is σ = 10123500. Its totient is φ = 9988224.

The previous prime is 10055827. The next prime is 10055867. The reversal of 10055861 is 16855001.

10055861 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 an emirpimes, since its reverse is a distinct semiprime: 16855001 = 139 ⋅121259.

It can be written as a sum of positive squares in 2 ways, for example, as 483025 + 9572836 = 695^2 + 3094^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10055861 is a prime.

It is a super-2 number, since 2×10055861² = 202240680902642, 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 10055861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10055867) 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, 33596 + ... + 33893.

It is an arithmetic number, because the mean of its divisors is an integer number (2530875).

Almost surely, 2^10055861 is an apocalyptic number.

It is an amenable number.

10055861 is a deficient number, since it is larger than the sum of its proper divisors (67639).

10055861 is an equidigital number, since it uses as much as digits as its factorization.

10055861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67638.

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

The square root of 10055861 is about 3171.0977594518. The cubic root of 10055861 is about 215.8438872548.

The spelling of 10055861 in words is "ten million, fifty-five thousand, eight hundred sixty-one".