42561435 has 16 divisors (see below), whose sum is σ = 77826816. Its totient is φ = 19456608.

The previous prime is 42561413. The next prime is 42561503. The reversal of 42561435 is 53416524.

It is not a de Polignac number, because 42561435 - 2⁷ = 42561307 is a prime.

It is a super-2 number, since 2×42561435² = 3622951498518450, which contains 22 as substring.

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, 202569 + ... + 202778.

It is an arithmetic number, because the mean of its divisors is an integer number (4864176).

Almost surely, 2^42561435 is an apocalyptic number.

42561435 is a deficient number, since it is larger than the sum of its proper divisors (35265381).

42561435 is a wasteful number, since it uses less digits than its factorization.

42561435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405362.

The product of its digits is 14400, while the sum is 30.

The square root of 42561435 is about 6523.9125530620. The cubic root of 42561435 is about 349.1446733685.

Adding to 42561435 its reverse (53416524), we get a palindrome (95977959).

The spelling of 42561435 in words is "forty-two million, five hundred sixty-one thousand, four hundred thirty-five".