45125028 has 54 divisors (see below), whose sum is σ = 123531954. Its totient is φ = 13882752.

The previous prime is 45125027. The next prime is 45125033. The reversal of 45125028 is 82052154.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1327104 + 43797924 = 1152^2 + 6618^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45124992 and 45125010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45125027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2376 + ... + 9792.

Almost surely, 2^45125028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45125028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61765977).

45125028 is an abundant number, since it is smaller than the sum of its proper divisors (78406926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45125028 is a wasteful number, since it uses less digits than its factorization.

45125028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7453 (or 7435 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 45125028 is about 6717.5165053761. The cubic root of 45125028 is about 356.0184415814.

The spelling of 45125028 in words is "forty-five million, one hundred twenty-five thousand, twenty-eight".