45404821550 has 48 divisors (see below), whose sum is σ = 96979507200. Its totient is φ = 15641848800.

The previous prime is 45404821549. The next prime is 45404821577. The reversal of 45404821550 is 5512840454.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2162030 + ... + 2182929.

It is an arithmetic number, because the mean of its divisors is an integer number (2020406400).

Almost surely, 2^45404821550 is an apocalyptic number.

45404821550 is an abundant number, since it is smaller than the sum of its proper divisors (51574685650).

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

45404821550 is a wasteful number, since it uses less digits than its factorization.

45404821550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4345001 (or 4344996 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 38.

The spelling of 45404821550 in words is "forty-five billion, four hundred four million, eight hundred twenty-one thousand, five hundred fifty".