45005352021 has 24 divisors (see below), whose sum is σ = 74325463680. Its totient is φ = 25706642976.

The previous prime is 45005351953. The next prime is 45005352023. The reversal of 45005352021 is 12025350054.

It is a happy number.

45005352021 is a `hidden beast` number, since 450 + 0 + 5 + 3 + 5 + 202 + 1 = 666.

45005352021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45005352021 - 2¹⁴ = 45005335637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45005352023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5235 + ... + 300063.

It is an arithmetic number, because the mean of its divisors is an integer number (3096894320).

Almost surely, 2^45005352021 is an apocalyptic number.

It is an amenable number.

45005352021 is a deficient number, since it is larger than the sum of its proper divisors (29320111659).

45005352021 is a wasteful number, since it uses less digits than its factorization.

45005352021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297265 (or 297262 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The spelling of 45005352021 in words is "forty-five billion, five million, three hundred fifty-two thousand, twenty-one".