45305550 has 72 divisors (see below), whose sum is σ = 123288984. Its totient is φ = 11926080.

The previous prime is 45305549. The next prime is 45305551. The reversal of 45305550 is 5550354.

It is an interprime number because it is at equal distance from previous prime (45305549) and next prime (45305551).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45305551) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 36744 + ... + 37956.

It is an arithmetic number, because the mean of its divisors is an integer number (1712347).

Almost surely, 2^45305550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45305550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61644492).

45305550 is an abundant number, since it is smaller than the sum of its proper divisors (77983434).

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

45305550 is a wasteful number, since it uses less digits than its factorization.

45305550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314 (or 1306 counting only the distinct ones).

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

The square root of 45305550 is about 6730.9397560816. The cubic root of 45305550 is about 356.4925587274.

The spelling of 45305550 in words is "forty-five million, three hundred five thousand, five hundred fifty".