42545465 has 16 divisors (see below), whose sum is σ = 55598400. Its totient is φ = 31131072.

The previous prime is 42545453. The next prime is 42545467. The reversal of 42545465 is 56454524.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42545465 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42545467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4967 + ... + 10476.

It is an arithmetic number, because the mean of its divisors is an integer number (3474900).

Almost surely, 2^42545465 is an apocalyptic number.

It is an amenable number.

42545465 is a deficient number, since it is larger than the sum of its proper divisors (13052935).

42545465 is a wasteful number, since it uses less digits than its factorization.

42545465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15496.

The product of its digits is 96000, while the sum is 35.

The square root of 42545465 is about 6522.6884794539. The cubic root of 42545465 is about 349.1009989484.

Adding to 42545465 its reverse (56454524), we get a palindrome (98999989).

The spelling of 42545465 in words is "forty-two million, five hundred forty-five thousand, four hundred sixty-five".