42455455 has 16 divisors (see below), whose sum is σ = 58489920. Its totient is φ = 28979712.

The previous prime is 42455423. The next prime is 42455471. The reversal of 42455455 is 55455424.

It is a cyclic number.

It is not a de Polignac number, because 42455455 - 2⁵ = 42455423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42455455.

It is a congruent 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, 5367 + ... + 10663.

It is an arithmetic number, because the mean of its divisors is an integer number (3655620).

Almost surely, 2^42455455 is an apocalyptic number.

42455455 is a deficient number, since it is larger than the sum of its proper divisors (16034465).

42455455 is a wasteful number, since it uses less digits than its factorization.

42455455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5538.

The product of its digits is 80000, while the sum is 34.

The square root of 42455455 is about 6515.7850639812. The cubic root of 42455455 is about 348.8546368790.

The spelling of 42455455 in words is "forty-two million, four hundred fifty-five thousand, four hundred fifty-five".