20540053444 has 48 divisors (see below), whose sum is σ = 36583384320. Its totient is φ = 10089878400.

The previous prime is 20540053421. The next prime is 20540053447. The reversal of 20540053444 is 44435004502.

It is a super-2 number, since 2×20540053444² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20540053447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27133114 + ... + 27133870.

It is an arithmetic number, because the mean of its divisors is an integer number (762153840).

Almost surely, 2^20540053444 is an apocalyptic number.

It is an amenable number.

20540053444 is a deficient number, since it is larger than the sum of its proper divisors (16043330876).

20540053444 is a wasteful number, since it uses less digits than its factorization.

20540053444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348 (or 1346 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 31.

Adding to 20540053444 its reverse (44435004502), we get a palindrome (64975057946).

The spelling of 20540053444 in words is "twenty billion, five hundred forty million, fifty-three thousand, four hundred forty-four".