42485651 has 4 divisors (see below), whose sum is σ = 45753792. Its totient is φ = 39217512.

The previous prime is 42485629. The next prime is 42485659. The reversal of 42485651 is 15658424.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42485651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42485659) 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 3 ways as a sum of consecutive naturals, for example, 1634051 + ... + 1634076.

It is an arithmetic number, because the mean of its divisors is an integer number (11438448).

Almost surely, 2^42485651 is an apocalyptic number.

42485651 is a deficient number, since it is larger than the sum of its proper divisors (3268141).

42485651 is a wasteful number, since it uses less digits than its factorization.

42485651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3268140.

The product of its digits is 38400, while the sum is 35.

The square root of 42485651 is about 6518.1017942343. The cubic root of 42485651 is about 348.9373236873.

The spelling of 42485651 in words is "forty-two million, four hundred eighty-five thousand, six hundred fifty-one".