22545152405 has 4 divisors (see below), whose sum is σ = 27054182892. Its totient is φ = 18036121920.

The previous prime is 22545152401. The next prime is 22545152407. The reversal of 22545152405 is 50425154522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11180313169 + 11364839236 = 105737^2 + 106606^2 .

It is not a de Polignac number, because 22545152405 - 2² = 22545152401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22545152401) 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, 2254515236 + ... + 2254515245.

It is an arithmetic number, because the mean of its divisors is an integer number (6763545723).

Almost surely, 2^22545152405 is an apocalyptic number.

It is an amenable number.

22545152405 is a deficient number, since it is larger than the sum of its proper divisors (4509030487).

22545152405 is an equidigital number, since it uses as much as digits as its factorization.

22545152405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4509030486.

The product of its (nonzero) digits is 80000, while the sum is 35.

The spelling of 22545152405 in words is "twenty-two billion, five hundred forty-five million, one hundred fifty-two thousand, four hundred five".