45561825 has 24 divisors (see below), whose sum is σ = 83700000. Its totient is φ = 24299280.

The previous prime is 45561823. The next prime is 45561833. The reversal of 45561825 is 52816554.

It is not a de Polignac number, because 45561825 - 2¹ = 45561823 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 45561825.

It is not an unprimeable number, because it can be changed into a prime (45561823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33075 + ... + 34424.

It is an arithmetic number, because the mean of its divisors is an integer number (3487500).

Almost surely, 2^45561825 is an apocalyptic number.

45561825 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45561825 is a deficient number, since it is larger than the sum of its proper divisors (38138175).

45561825 is a wasteful number, since it uses less digits than its factorization.

45561825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67518 (or 67507 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 45561825 is about 6749.9499998148. The cubic root of 45561825 is about 357.1634729052.

The spelling of 45561825 in words is "forty-five million, five hundred sixty-one thousand, eight hundred twenty-five".