42455552231 has 4 divisors (see below), whose sum is σ = 44690055000. Its totient is φ = 40221049464.

The previous prime is 42455552221. The next prime is 42455552239. The reversal of 42455552231 is 13225555424.

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 42455552231 - 2²⁶ = 42388443367 is a prime.

It is a super-2 number, since 2×42455552231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42455552239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1117251356 + ... + 1117251393.

It is an arithmetic number, because the mean of its divisors is an integer number (11172513750).

Almost surely, 2^42455552231 is an apocalyptic number.

42455552231 is a deficient number, since it is larger than the sum of its proper divisors (2234502769).

42455552231 is a wasteful number, since it uses less digits than its factorization.

42455552231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2234502768.

The product of its digits is 240000, while the sum is 38.

The spelling of 42455552231 in words is "forty-two billion, four hundred fifty-five million, five hundred fifty-two thousand, two hundred thirty-one".