45509663 has 16 divisors (see below), whose sum is σ = 50595840. Its totient is φ = 40715136.

The previous prime is 45509657. The next prime is 45509687. The reversal of 45509663 is 36690554.

It is not a de Polignac number, because 45509663 - 2⁸ = 45509407 is a prime.

It is a super-3 number, since 3×45509663³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45509063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93206 + ... + 93692.

It is an arithmetic number, because the mean of its divisors is an integer number (3162240).

Almost surely, 2^45509663 is an apocalyptic number.

45509663 is a deficient number, since it is larger than the sum of its proper divisors (5086177).

45509663 is a wasteful number, since it uses less digits than its factorization.

45509663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766.

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 45509663 is about 6746.0850128056. The cubic root of 45509663 is about 357.0271198996.

The spelling of 45509663 in words is "forty-five million, five hundred nine thousand, six hundred sixty-three".