42554636 has 12 divisors (see below), whose sum is σ = 74517240. Its totient is φ = 21264000.

The previous prime is 42554627. The next prime is 42554639. The reversal of 42554636 is 63645524.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42554596 and 42554605.

It is not an unprimeable number, because it can be changed into a prime (42554639) 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, 8636 + ... + 12636.

It is an arithmetic number, because the mean of its divisors is an integer number (6209770).

Almost surely, 2^42554636 is an apocalyptic number.

It is an amenable number.

42554636 is a deficient number, since it is larger than the sum of its proper divisors (31962604).

42554636 is a wasteful number, since it uses less digits than its factorization.

42554636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6664 (or 6662 counting only the distinct ones).

The product of its digits is 86400, while the sum is 35.

The square root of 42554636 is about 6523.3914492387. The cubic root of 42554636 is about 349.1260809420.

The spelling of 42554636 in words is "forty-two million, five hundred fifty-four thousand, six hundred thirty-six".