42255345 has 16 divisors (see below), whose sum is σ = 73755072. Its totient is φ = 20487360.

The previous prime is 42255329. The next prime is 42255427. The reversal of 42255345 is 54355224.

It is not a de Polignac number, because 42255345 - 2⁴ = 42255329 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127882 + ... + 128211.

It is an arithmetic number, because the mean of its divisors is an integer number (4609692).

Almost surely, 2^42255345 is an apocalyptic number.

It is an amenable number.

42255345 is a deficient number, since it is larger than the sum of its proper divisors (31499727).

42255345 is a wasteful number, since it uses less digits than its factorization.

42255345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256112.

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

The square root of 42255345 is about 6500.4111408433. The cubic root of 42255345 is about 348.3056750753.

The spelling of 42255345 in words is "forty-two million, two hundred fifty-five thousand, three hundred forty-five".