42531500205 has 24 divisors (see below), whose sum is σ = 73728600192. Its totient is φ = 22681210464.

The previous prime is 42531500191. The next prime is 42531500213. The reversal of 42531500205 is 50200513524.

It is a happy number.

42531500205 is a `hidden beast` number, since 425 + 31 + 5 + 0 + 0 + 205 = 666.

42531500205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42531500205 - 2⁵ = 42531500173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 473832 + ... + 556398.

It is an arithmetic number, because the mean of its divisors is an integer number (3072025008).

Almost surely, 2^42531500205 is an apocalyptic number.

42531500205 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42531500205 is a deficient number, since it is larger than the sum of its proper divisors (31197099987).

42531500205 is a wasteful number, since it uses less digits than its factorization.

42531500205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94025 (or 94022 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The spelling of 42531500205 in words is "forty-two billion, five hundred thirty-one million, five hundred thousand, two hundred five".