45530550 has 144 divisors (see below), whose sum is σ = 135543408. Its totient is φ = 10886400.

The previous prime is 45530549. The next prime is 45530557. The reversal of 45530550 is 5503554.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45530557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 251460 + ... + 251640.

Almost surely, 2^45530550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45530550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67771704).

45530550 is an abundant number, since it is smaller than the sum of its proper divisors (90012858).

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

45530550 is a wasteful number, since it uses less digits than its factorization.

45530550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 45530550 is about 6747.6329182907. The cubic root of 45530550 is about 357.0817316341.

The spelling of 45530550 in words is "forty-five million, five hundred thirty thousand, five hundred fifty".