45521125 has 32 divisors (see below), whose sum is σ = 61981920. Its totient is φ = 33177600.

The previous prime is 45521107. The next prime is 45521129. The reversal of 45521125 is 52112554.

It can be written as a sum of positive squares in 16 ways, for example, as 21696964 + 23824161 = 4658^2 + 4881^2 .

It is not a de Polignac number, because 45521125 - 2⁹ = 45520613 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 45521125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45521129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 176997 + ... + 177253.

It is an arithmetic number, because the mean of its divisors is an integer number (1936935).

Almost surely, 2^45521125 is an apocalyptic number.

It is an amenable number.

45521125 is a deficient number, since it is larger than the sum of its proper divisors (16460795).

45521125 is a wasteful number, since it uses less digits than its factorization.

45521125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394 (or 384 counting only the distinct ones).

The product of its digits is 2000, while the sum is 25.

The square root of 45521125 is about 6746.9344890847. The cubic root of 45521125 is about 357.0570908338.

Adding to 45521125 its reverse (52112554), we get a palindrome (97633679).

The spelling of 45521125 in words is "forty-five million, five hundred twenty-one thousand, one hundred twenty-five".