42556500065625 has 192 divisors, whose sum is σ = 87549409479168. Its totient is φ = 17904499200000.

The previous prime is 42556500065621. The next prime is 42556500065693. The reversal of 42556500065625 is 52656000565524.

It is not a de Polignac number, because 42556500065625 - 2² = 42556500065621 is a prime.

It is a super-2 number, since 2×42556500065625² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42556500065621) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 287429115 + ... + 287577135.

It is an arithmetic number, because the mean of its divisors is an integer number (455986507704).

Almost surely, 2^{42556500065625} is an apocalyptic number.

It is an amenable number.

42556500065625 is an abundant number, since it is smaller than the sum of its proper divisors (44992909413543).

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

42556500065625 is a wasteful number, since it uses less digits than its factorization.

42556500065625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148406 (or 148386 counting only the distinct ones).

The product of its (nonzero) digits is 10800000, while the sum is 51.

The spelling of 42556500065625 in words is "forty-two trillion, five hundred fifty-six billion, five hundred million, sixty-five thousand, six hundred twenty-five".