45250000 has 70 divisors (see below), whose sum is σ = 110193902. Its totient is φ = 18000000.

The previous prime is 45249989. The next prime is 45250027. The reversal of 45250000 is 5254.

It is a happy number.

45250000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 7 ways, for example, as 39237696 + 6012304 = 6264^2 + 2452^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

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 13 ways as a sum of consecutive naturals, for example, 249910 + ... + 250090.

Almost surely, 2^45250000 is an apocalyptic number.

45250000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45250000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55096951).

45250000 is an abundant number, since it is smaller than the sum of its proper divisors (64943902).

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

45250000 is an frugal number, since it uses more digits than its factorization.

45250000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 45250000 is about 6726.8120235369. The cubic root of 45250000 is about 356.3467983601.

Adding to 45250000 its reverse (5254), we get a palindrome (45255254).

The spelling of 45250000 in words is "forty-five million, two hundred fifty thousand".