45512405 has 24 divisors (see below), whose sum is σ = 57574440. Its totient is φ = 34525440.

The previous prime is 45512399. The next prime is 45512431. The reversal of 45512405 is 50421554.

It can be written as a sum of positive squares in 12 ways, for example, as 1965604 + 43546801 = 1402^2 + 6599^2 .

It is a de Polignac number, because none of the positive numbers 2^k-45512405 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 417491 + ... + 417599.

It is an arithmetic number, because the mean of its divisors is an integer number (2398935).

Almost surely, 2^45512405 is an apocalyptic number.

It is an amenable number.

45512405 is a deficient number, since it is larger than the sum of its proper divisors (12062035).

45512405 is a wasteful number, since it uses less digits than its factorization.

45512405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 45512405 is about 6746.2882387280. The cubic root of 45512405 is about 357.0342901622.

Adding to 45512405 its reverse (50421554), we get a palindrome (95933959).

The spelling of 45512405 in words is "forty-five million, five hundred twelve thousand, four hundred five".