20253265 has 8 divisors (see below), whose sum is σ = 24361920. Its totient is φ = 16163952.

The previous prime is 20253241. The next prime is 20253347. The reversal of 20253265 is 56235202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20253265 - 2¹³ = 20245073 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2419 + ... + 6808.

It is an arithmetic number, because the mean of its divisors is an integer number (3045240).

Almost surely, 2^20253265 is an apocalyptic number.

It is an amenable number.

20253265 is a deficient number, since it is larger than the sum of its proper divisors (4108655).

20253265 is an equidigital number, since it uses as much as digits as its factorization.

20253265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9671.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 20253265 is about 4500.3627631559. The cubic root of 20253265 is about 272.5827372703.

Adding to 20253265 its reverse (56235202), we get a palindrome (76488467).

The spelling of 20253265 in words is "twenty million, two hundred fifty-three thousand, two hundred sixty-five".