42235455 has 32 divisors (see below), whose sum is σ = 70479360. Its totient is φ = 21571200.

The previous prime is 42235451. The next prime is 42235471. The reversal of 42235455 is 55453224.

It is not a de Polignac number, because 42235455 - 2² = 42235451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42235451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65364 + ... + 66006.

It is an arithmetic number, because the mean of its divisors is an integer number (2202480).

Almost surely, 2^42235455 is an apocalyptic number.

42235455 is a deficient number, since it is larger than the sum of its proper divisors (28243905).

42235455 is a wasteful number, since it uses less digits than its factorization.

42235455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831.

The product of its digits is 24000, while the sum is 30.

The square root of 42235455 is about 6498.8810575360. The cubic root of 42235455 is about 348.2510162137.

Adding to 42235455 its reverse (55453224), we get a palindrome (97688679).

The spelling of 42235455 in words is "forty-two million, two hundred thirty-five thousand, four hundred fifty-five".