25530253 has 8 divisors (see below), whose sum is σ = 30446208. Its totient is φ = 20931504.

The previous prime is 25530247. The next prime is 25530257. The reversal of 25530253 is 35203552.

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 25530253 - 2²¹ = 23433101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25530257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79126 + ... + 79447.

It is an arithmetic number, because the mean of its divisors is an integer number (3805776).

Almost surely, 2^25530253 is an apocalyptic number.

25530253 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

25530253 is a deficient number, since it is larger than the sum of its proper divisors (4915955).

25530253 is a wasteful number, since it uses less digits than its factorization.

25530253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158603.

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 25530253 is about 5052.7470746120. The cubic root of 25530253 is about 294.4546200457.

The spelling of 25530253 in words is "twenty-five million, five hundred thirty thousand, two hundred fifty-three".