2256835082437 has 4 divisors (see below), whose sum is σ = 2430437781100. Its totient is φ = 2083232383776.

The previous prime is 2256835082423. The next prime is 2256835082441. The reversal of 2256835082437 is 7342805386522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 329474852001 + 1927360230436 = 573999^2 + 1388294^2 .

It is a cyclic number.

It is not a de Polignac number, because 2256835082437 - 2⁷ = 2256835082309 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 (2256835082407) 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, 86801349312 + ... + 86801349337.

It is an arithmetic number, because the mean of its divisors is an integer number (607609445275).

Almost surely, 2^{2256835082437} is an apocalyptic number.

It is an amenable number.

2256835082437 is a deficient number, since it is larger than the sum of its proper divisors (173602698663).

2256835082437 is a wasteful number, since it uses less digits than its factorization.

2256835082437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173602698662.

The product of its (nonzero) digits is 19353600, while the sum is 55.

The spelling of 2256835082437 in words is "two trillion, two hundred fifty-six billion, eight hundred thirty-five million, eighty-two thousand, four hundred thirty-seven".