20522454441 has 4 divisors (see below), whose sum is σ = 27363272592. Its totient is φ = 13681636292.

The previous prime is 20522454437. The next prime is 20522454443. The reversal of 20522454441 is 14445422502.

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 20522454441 - 2² = 20522454437 is a prime.

It is a super-2 number, since 2×20522454441² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20522454443) 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, 3420409071 + ... + 3420409076.

It is an arithmetic number, because the mean of its divisors is an integer number (6840818148).

Almost surely, 2^20522454441 is an apocalyptic number.

It is an amenable number.

20522454441 is a deficient number, since it is larger than the sum of its proper divisors (6840818151).

20522454441 is an equidigital number, since it uses as much as digits as its factorization.

20522454441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6840818150.

The product of its (nonzero) digits is 51200, while the sum is 33.

Adding to 20522454441 its reverse (14445422502), we get a palindrome (34967876943).

The spelling of 20522454441 in words is "twenty billion, five hundred twenty-two million, four hundred fifty-four thousand, four hundred forty-one".