20054525 has 6 divisors (see below), whose sum is σ = 24867642. Its totient is φ = 16043600.

The previous prime is 20054521. The next prime is 20054537. The reversal of 20054525 is 52545002.

It can be written as a sum of positive squares in 3 ways, for example, as 6497401 + 13557124 = 2549^2 + 3682^2 .

It is not a de Polignac number, because 20054525 - 2² = 20054521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20054525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20054521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 401066 + ... + 401115.

It is an arithmetic number, because the mean of its divisors is an integer number (4144607).

Almost surely, 2^20054525 is an apocalyptic number.

20054525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20054525 is a deficient number, since it is larger than the sum of its proper divisors (4813117).

20054525 is an equidigital number, since it uses as much as digits as its factorization.

20054525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802191 (or 802186 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 20054525 is about 4478.2278861175. The cubic root of 20054525 is about 271.6882105355.

Adding to 20054525 its reverse (52545002), we get a palindrome (72599527).

The spelling of 20054525 in words is "twenty million, fifty-four thousand, five hundred twenty-five".