20673032625 has 120 divisors (see below), whose sum is σ = 44834086440. Its totient is φ = 9450302400.

The previous prime is 20673032573. The next prime is 20673032629. The reversal of 20673032625 is 52623037602.

It is a happy number.

20673032625 is a `hidden beast` number, since 20 + 6 + 7 + 3 + 0 + 3 + 2 + 625 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3236358321 + 17436674304 = 56889^2 + 132048^2 .

It is not a de Polignac number, because 20673032625 - 2⁶ = 20673032561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20673032625.

It is not an unprimeable number, because it can be changed into a prime (20673032629) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 475291 + ... + 516959.

It is an arithmetic number, because the mean of its divisors is an integer number (373617387).

Almost surely, 2^20673032625 is an apocalyptic number.

20673032625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20673032625 is an abundant number, since it is smaller than the sum of its proper divisors (24161053815).

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

20673032625 is an equidigital number, since it uses as much as digits as its factorization.

20673032625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41710 (or 41684 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The spelling of 20673032625 in words is "twenty billion, six hundred seventy-three million, thirty-two thousand, six hundred twenty-five".