4256125123444 has 12 divisors (see below), whose sum is σ = 7448233599268. Its totient is φ = 2128058380800.

The previous prime is 4256125123403. The next prime is 4256125123447. The reversal of 4256125123444 is 4443215216524.

It can be written as a sum of positive squares in 2 ways, for example, as 130400432100 + 4125724691344 = 361110^2 + 2031188^2 .

It is a super-2 number, since 2×4256125123444² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4256125123444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4256125123447) 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, 2898934 + ... + 4112914.

Almost surely, 2^{4256125123444} is an apocalyptic number.

It is an amenable number.

4256125123444 is a deficient number, since it is larger than the sum of its proper divisors (3192108475824).

4256125123444 is a wasteful number, since it uses less digits than its factorization.

4256125123444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090466 (or 2090464 counting only the distinct ones).

The product of its digits is 921600, while the sum is 43.

The spelling of 4256125123444 in words is "four trillion, two hundred fifty-six billion, one hundred twenty-five million, one hundred twenty-three thousand, four hundred forty-four".