42272055 has 72 divisors (see below), whose sum is σ = 89809200. Its totient is φ = 18289152.

The previous prime is 42272039. The next prime is 42272059. The reversal of 42272055 is 55027224.

It is not a de Polignac number, because 42272055 - 2⁴ = 42272039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42272059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 41391 + ... + 42399.

It is an arithmetic number, because the mean of its divisors is an integer number (1247350).

Almost surely, 2^42272055 is an apocalyptic number.

42272055 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42272055 is an abundant number, since it is smaller than the sum of its proper divisors (47537145).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42272055 is a wasteful number, since it uses less digits than its factorization.

42272055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053 (or 1043 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 42272055 is about 6501.6963171160. The cubic root of 42272055 is about 348.3515818578.

Adding to 42272055 its reverse (55027224), we get a palindrome (97299279).

The spelling of 42272055 in words is "forty-two million, two hundred seventy-two thousand, fifty-five".