45556643 has 4 divisors (see below), whose sum is σ = 49698168. Its totient is φ = 41415120.

The previous prime is 45556631. The next prime is 45556649. The reversal of 45556643 is 34665554.

It is a happy number.

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 45556643 - 2⁶ = 45556579 is a prime.

It is a super-3 number, since 3×45556643³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45556597 and 45556606.

It is not an unprimeable number, because it can be changed into a prime (45556649) 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, 2070746 + ... + 2070767.

It is an arithmetic number, because the mean of its divisors is an integer number (12424542).

Almost surely, 2^45556643 is an apocalyptic number.

45556643 is a deficient number, since it is larger than the sum of its proper divisors (4141525).

45556643 is a wasteful number, since it uses less digits than its factorization.

45556643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4141524.

The product of its digits is 216000, while the sum is 38.

The square root of 45556643 is about 6749.5661342045. The cubic root of 45556643 is about 357.1499316618.

The spelling of 45556643 in words is "forty-five million, five hundred fifty-six thousand, six hundred forty-three".