42187382255 has 4 divisors (see below), whose sum is σ = 50624858712. Its totient is φ = 33749905800.

The previous prime is 42187382249. The next prime is 42187382261. The reversal of 42187382255 is 55228378124.

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

It is an interprime number because it is at equal distance from previous prime (42187382249) and next prime (42187382261).

It is not a de Polignac number, because 42187382255 - 2¹⁸ = 42187120111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4218738221 + ... + 4218738230.

It is an arithmetic number, because the mean of its divisors is an integer number (12656214678).

Almost surely, 2^42187382255 is an apocalyptic number.

42187382255 is a deficient number, since it is larger than the sum of its proper divisors (8437476457).

42187382255 is an equidigital number, since it uses as much as digits as its factorization.

42187382255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8437476456.

The product of its digits is 1075200, while the sum is 47.

The spelling of 42187382255 in words is "forty-two billion, one hundred eighty-seven million, three hundred eighty-two thousand, two hundred fifty-five".