45643565 has 8 divisors (see below), whose sum is σ = 59751648. Its totient is φ = 33195280.

The previous prime is 45643553. The next prime is 45643573. The reversal of 45643565 is 56534654.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45643565 - 2¹⁴ = 45627181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 414887 + ... + 414996.

It is an arithmetic number, because the mean of its divisors is an integer number (7468956).

Almost surely, 2^45643565 is an apocalyptic number.

It is an amenable number.

45643565 is a deficient number, since it is larger than the sum of its proper divisors (14108083).

45643565 is a wasteful number, since it uses less digits than its factorization.

45643565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829899.

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

The square root of 45643565 is about 6756.0021462400. The cubic root of 45643565 is about 357.3769345102.

It can be divided in two parts, 4564 and 3565, that multiplied together give a triangular number (16270660 = T₅₇₀₄).

The spelling of 45643565 in words is "forty-five million, six hundred forty-three thousand, five hundred sixty-five".