45561500 has 48 divisors (see below), whose sum is σ = 100166976. Its totient is φ = 18104000.

The previous prime is 45561499. The next prime is 45561521. The reversal of 45561500 is 516554.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 45561500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146345 + ... + 146655.

It is an arithmetic number, because the mean of its divisors is an integer number (2086812).

Almost surely, 2^45561500 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 45561500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50083488).

45561500 is an abundant number, since it is smaller than the sum of its proper divisors (54605476).

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

45561500 is a wasteful number, since it uses less digits than its factorization.

45561500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 45561500 is about 6749.9259255195. The cubic root of 45561500 is about 357.1626236679.

The spelling of 45561500 in words is "forty-five million, five hundred sixty-one thousand, five hundred".