2256539972430 has 24 divisors (see below), whose sum is σ = 5415715680552. Its totient is φ = 601741798576.

The previous prime is 2256539972387. The next prime is 2256539972473. The reversal of 2256539972430 is 342799356522.

It is an interprime number because it is at equal distance from previous prime (2256539972387) and next prime (2256539972473).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8090641 + ... + 8364899.

It is an arithmetic number, because the mean of its divisors is an integer number (225654820023).

Almost surely, 2^{2256539972430} is an apocalyptic number.

2256539972430 is an abundant number, since it is smaller than the sum of its proper divisors (3159175708122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2256539972430 is an frugal number, since it uses more digits than its factorization.

2256539972430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548528 (or 274269 counting only the distinct ones).

The product of its (nonzero) digits is 24494400, while the sum is 57.

The spelling of 2256539972430 in words is "two trillion, two hundred fifty-six billion, five hundred thirty-nine million, nine hundred seventy-two thousand, four hundred thirty".