10255861 has 16 divisors (see below), whose sum is σ = 13344768. Its totient is φ = 7642800.

The previous prime is 10255831. The next prime is 10255897. The reversal of 10255861 is 16855201.

It is not a de Polignac number, because 10255861 - 2⁵ = 10255829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10255831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1125 + ... + 4666.

It is an arithmetic number, because the mean of its divisors is an integer number (834048).

Almost surely, 2^10255861 is an apocalyptic number.

10255861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10255861 is a deficient number, since it is larger than the sum of its proper divisors (3088907).

10255861 is a wasteful number, since it uses less digits than its factorization.

10255861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5832.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 10255861 is about 3202.4773223241. The cubic root of 10255861 is about 217.2654696612.

It can be divided in two parts, 1025 and 5861, that added together give a palindrome (6886).

The spelling of 10255861 in words is "ten million, two hundred fifty-five thousand, eight hundred sixty-one".