45565500 has 96 divisors (see below), whose sum is σ = 136438848. Its totient is φ = 11808000.

The previous prime is 45565493. The next prime is 45565501. The reversal of 45565500 is 556554.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45565501) 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, 55090 + ... + 55910.

It is an arithmetic number, because the mean of its divisors is an integer number (1421238).

Almost surely, 2^45565500 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 45565500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68219424).

45565500 is an abundant number, since it is smaller than the sum of its proper divisors (90873348).

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

45565500 is a wasteful number, since it uses less digits than its factorization.

45565500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 45565500 is about 6750.2222185644. Note that the first 4 decimals coincide. The cubic root of 45565500 is about 357.1730755383.

The spelling of 45565500 in words is "forty-five million, five hundred sixty-five thousand, five hundred".