45513405 has 36 divisors (see below), whose sum is σ = 91774332. Its totient is φ = 20805120.

The previous prime is 45513397. The next prime is 45513407. The reversal of 45513405 is 50431554.

It can be written as a sum of positive squares in 2 ways, for example, as 11431161 + 34082244 = 3381^2 + 5838^2 .

It is not a de Polignac number, because 45513405 - 2³ = 45513397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45513407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8116 + ... + 12525.

It is an arithmetic number, because the mean of its divisors is an integer number (2549287).

Almost surely, 2^45513405 is an apocalyptic number.

45513405 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45513405 is an abundant number, since it is smaller than the sum of its proper divisors (46260927).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45513405 is a wasteful number, since it uses less digits than its factorization.

45513405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20666 (or 20656 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 45513405 is about 6746.3623531500. The cubic root of 45513405 is about 357.0369050660.

Adding to 45513405 its reverse (50431554), we get a palindrome (95944959).

The spelling of 45513405 in words is "forty-five million, five hundred thirteen thousand, four hundred five".