42534544560401 has 4 divisors (see below), whose sum is σ = 42534640740900. Its totient is φ = 42534448379904.

The previous prime is 42534544560397. The next prime is 42534544560407. The reversal of 42534544560401 is 10406544543524.

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 1779075792400 + 40755468768001 = 1333820^2 + 6384001^2 .

It is a cyclic number.

It is not a de Polignac number, because 42534544560401 - 2² = 42534544560397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42534544560407) 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, 47423816 + ... + 48312393.

It is an arithmetic number, because the mean of its divisors is an integer number (10633660185225).

Almost surely, 2^{42534544560401} is an apocalyptic number.

It is an amenable number.

42534544560401 is a deficient number, since it is larger than the sum of its proper divisors (96180499).

42534544560401 is an equidigital number, since it uses as much as digits as its factorization.

42534544560401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96180498.

The product of its (nonzero) digits is 4608000, while the sum is 47.

The spelling of 42534544560401 in words is "forty-two trillion, five hundred thirty-four billion, five hundred forty-four million, five hundred sixty thousand, four hundred one".