45605511 has 40 divisors (see below), whose sum is σ = 78415744. Its totient is φ = 25981560.

The previous prime is 45605471. The next prime is 45605513. The reversal of 45605511 is 11550654.

It is a happy number.

45605511 is a `hidden beast` number, since 4 + 5 + 605 + 51 + 1 = 666.

It is not a de Polignac number, because 45605511 - 2⁶ = 45605447 is a prime.

It is a super-2 number, since 2×45605511² = 4159725267142242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45605513) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 137616 + ... + 137946.

Almost surely, 2^45605511 is an apocalyptic number.

45605511 is a deficient number, since it is larger than the sum of its proper divisors (32810233).

45605511 is an frugal number, since it uses more digits than its factorization.

45605511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 45605511 is about 6753.1852484587. The cubic root of 45605511 is about 357.2775893411.

The spelling of 45605511 in words is "forty-five million, six hundred five thousand, five hundred eleven".