20053625 has 16 divisors (see below), whose sum is σ = 26501904. Its totient is φ = 15097600.

The previous prime is 20053613. The next prime is 20053637. The reversal of 20053625 is 52635002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20053613) and next prime (20053637).

It can be written as a sum of positive squares in 8 ways, for example, as 3374569 + 16679056 = 1837^2 + 4084^2 .

It is not a de Polignac number, because 20053625 - 2²⁴ = 3276409 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 20053625.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2594 + ... + 6843.

It is an arithmetic number, because the mean of its divisors is an integer number (1656369).

Almost surely, 2^20053625 is an apocalyptic number.

20053625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20053625 is a deficient number, since it is larger than the sum of its proper divisors (6448279).

20053625 is an equidigital number, since it uses as much as digits as its factorization.

20053625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9469 (or 9459 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 20053625 is about 4478.1273988130. The cubic root of 20053625 is about 271.6841462317.

Adding to 20053625 its reverse (52635002), we get a palindrome (72688627).

The spelling of 20053625 in words is "twenty million, fifty-three thousand, six hundred twenty-five".