45125553 has 16 divisors (see below), whose sum is σ = 67756032. Its totient is φ = 26466000.

The previous prime is 45125519. The next prime is 45125569. The reversal of 45125553 is 35552154.

It is a happy number.

45125553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45125553 - 2²² = 40931249 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 45125553.

It is not an unprimeable number, because it can be changed into a prime (45125573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21033 + ... + 23078.

It is an arithmetic number, because the mean of its divisors is an integer number (4234752).

Almost surely, 2^45125553 is an apocalyptic number.

It is an amenable number.

45125553 is a deficient number, since it is larger than the sum of its proper divisors (22630479).

45125553 is a wasteful number, since it uses less digits than its factorization.

45125553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44156.

The product of its digits is 15000, while the sum is 30.

The square root of 45125553 is about 6717.5555822040. Note that the first 4 decimals coincide. The cubic root of 45125553 is about 356.0198222561.

The spelling of 45125553 in words is "forty-five million, one hundred twenty-five thousand, five hundred fifty-three".