45523370221 has 4 divisors (see below), whose sum is σ = 52026708832. Its totient is φ = 39020031612.

The previous prime is 45523370213. The next prime is 45523370239. The reversal of 45523370221 is 12207332554.

45523370221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45523370221 - 2³ = 45523370213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45523370201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3251669295 + ... + 3251669308.

It is an arithmetic number, because the mean of its divisors is an integer number (13006677208).

Almost surely, 2^45523370221 is an apocalyptic number.

It is an amenable number.

45523370221 is a deficient number, since it is larger than the sum of its proper divisors (6503338611).

45523370221 is an equidigital number, since it uses as much as digits as its factorization.

45523370221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6503338610.

The product of its (nonzero) digits is 50400, while the sum is 34.

The spelling of 45523370221 in words is "forty-five billion, five hundred twenty-three million, three hundred seventy thousand, two hundred twenty-one".