45591125 has 16 divisors (see below), whose sum is σ = 57086640. Its totient is φ = 36352000.

The previous prime is 45591113. The next prime is 45591131. The reversal of 45591125 is 52119554.

It can be written as a sum of positive squares in 8 ways, for example, as 12666481 + 32924644 = 3559^2 + 5738^2 .

It is not a de Polignac number, because 45591125 - 2⁴ = 45591109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45591091 and 45591100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70805 + ... + 71445.

It is an arithmetic number, because the mean of its divisors is an integer number (3567915).

Almost surely, 2^45591125 is an apocalyptic number.

It is an amenable number.

45591125 is a deficient number, since it is larger than the sum of its proper divisors (11495515).

45591125 is an equidigital number, since it uses as much as digits as its factorization.

45591125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225 (or 1215 counting only the distinct ones).

The product of its digits is 9000, while the sum is 32.

The square root of 45591125 is about 6752.1200374401. The cubic root of 45591125 is about 357.2400183267.

The spelling of 45591125 in words is "forty-five million, five hundred ninety-one thousand, one hundred twenty-five".