42455659 has 4 divisors (see below), whose sum is σ = 42779880. Its totient is φ = 42131440.

The previous prime is 42455641. The next prime is 42455669. The reversal of 42455659 is 95655424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42455659 - 2⁷ = 42455531 is a prime.

It is a super-2 number, since 2×42455659² = 3604965962248562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42455669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161914 + ... + 162175.

It is an arithmetic number, because the mean of its divisors is an integer number (10694970).

Almost surely, 2^42455659 is an apocalyptic number.

42455659 is a deficient number, since it is larger than the sum of its proper divisors (324221).

42455659 is a wasteful number, since it uses less digits than its factorization.

42455659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324220.

The product of its digits is 216000, while the sum is 40.

The square root of 42455659 is about 6515.8007182541. The cubic root of 42455659 is about 348.8551956312.

The spelling of 42455659 in words is "forty-two million, four hundred fifty-five thousand, six hundred fifty-nine".