20325255444 has 36 divisors (see below), whose sum is σ = 55329863316. Its totient is φ = 6253924608.

The previous prime is 20325255443. The next prime is 20325255463. The reversal of 20325255444 is 44455252302.

20325255444 is a `hidden beast` number, since 20 + 32 + 52 + 554 + 4 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2062976400 + 18262279044 = 45420^2 + 135138^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 20325255399 and 20325255408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20325255443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21714549 + ... + 21715484.

Almost surely, 2^20325255444 is an apocalyptic number.

It is an amenable number.

20325255444 is an abundant number, since it is smaller than the sum of its proper divisors (35004607872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20325255444 is a wasteful number, since it uses less digits than its factorization.

20325255444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43430056 (or 43430051 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

The spelling of 20325255444 in words is "twenty billion, three hundred twenty-five million, two hundred fifty-five thousand, four hundred forty-four".