42432255 has 40 divisors (see below), whose sum is σ = 80551152. Its totient is φ = 21295872.

The previous prime is 42432223. The next prime is 42432259. The reversal of 42432255 is 55223424.

It is a happy number.

It is not a de Polignac number, because 42432255 - 2⁵ = 42432223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42432259) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3804 + ... + 9966.

Almost surely, 2^42432255 is an apocalyptic number.

42432255 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42432255 is a deficient number, since it is larger than the sum of its proper divisors (38118897).

42432255 is a wasteful number, since it uses less digits than its factorization.

42432255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6197 (or 6188 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 42432255 is about 6514.0045287058. The cubic root of 42432255 is about 348.7910808354.

Adding to 42432255 its reverse (55223424), we get a palindrome (97655679).

The spelling of 42432255 in words is "forty-two million, four hundred thirty-two thousand, two hundred fifty-five".