42052534591 has 4 divisors (see below), whose sum is σ = 42053332392. Its totient is φ = 42051736792.

The previous prime is 42052534547. The next prime is 42052534631. The reversal of 42052534591 is 19543525024.

42052534591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 42052534591 - 2⁷ = 42052534463 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 (42052544591) 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, 313780 + ... + 427273.

It is an arithmetic number, because the mean of its divisors is an integer number (10513333098).

Almost surely, 2^42052534591 is an apocalyptic number.

42052534591 is a deficient number, since it is larger than the sum of its proper divisors (797801).

42052534591 is an equidigital number, since it uses as much as digits as its factorization.

42052534591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797800.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 42052534591 in words is "forty-two billion, fifty-two million, five hundred thirty-four thousand, five hundred ninety-one".