42455105 has 16 divisors (see below), whose sum is σ = 63517824. Its totient is φ = 26465280.

The previous prime is 42455087. The next prime is 42455107. The reversal of 42455105 is 50155424.

It is a de Polignac number, because none of the positive numbers 2^k-42455105 is a prime.

It is a super-2 number, since 2×42455105² = 3604871881122050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42455107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54752 + ... + 55521.

It is an arithmetic number, because the mean of its divisors is an integer number (3969864).

Almost surely, 2^42455105 is an apocalyptic number.

It is an amenable number.

42455105 is a deficient number, since it is larger than the sum of its proper divisors (21062719).

42455105 is a wasteful number, since it uses less digits than its factorization.

42455105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110296.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 42455105 is about 6515.7582060724. The cubic root of 42455105 is about 348.8536782314.

The spelling of 42455105 in words is "forty-two million, four hundred fifty-five thousand, one hundred five".