45032405221 has 8 divisors (see below), whose sum is σ = 48970056600. Its totient is φ = 41237941248.

The previous prime is 45032405189. The next prime is 45032405233. The reversal of 45032405221 is 12250423054.

It can be written as a sum of positive squares in 4 ways, for example, as 8080032321 + 36952372900 = 89889^2 + 192230^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45032405221 - 2⁵ = 45032405189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45032405221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45032405021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35796196 + ... + 35797453.

It is an arithmetic number, because the mean of its divisors is an integer number (6121257075).

Almost surely, 2^45032405221 is an apocalyptic number.

It is an amenable number.

45032405221 is a deficient number, since it is larger than the sum of its proper divisors (3937651379).

45032405221 is a wasteful number, since it uses less digits than its factorization.

45032405221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71593703.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 45032405221 its reverse (12250423054), we get a palindrome (57282828275).

The spelling of 45032405221 in words is "forty-five billion, thirty-two million, four hundred five thousand, two hundred twenty-one".