42207255 has 24 divisors (see below), whose sum is σ = 73373040. Its totient is φ = 22444800.

The previous prime is 42207247. The next prime is 42207259. The reversal of 42207255 is 55270224.

It is not a de Polignac number, because 42207255 - 2³ = 42207247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42207259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16876 + ... + 19214.

It is an arithmetic number, because the mean of its divisors is an integer number (3057210).

Almost surely, 2^42207255 is an apocalyptic number.

42207255 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42207255 is a deficient number, since it is larger than the sum of its proper divisors (31165785).

42207255 is a wasteful number, since it uses less digits than its factorization.

42207255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2751 (or 2748 counting only the distinct ones).

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

The square root of 42207255 is about 6496.7110910060. The cubic root of 42207255 is about 348.1734915750.

Adding to 42207255 its reverse (55270224), we get a palindrome (97477479).

The spelling of 42207255 in words is "forty-two million, two hundred seven thousand, two hundred fifty-five".