25530953 has 8 divisors (see below), whose sum is σ = 29614272. Its totient is φ = 21556656.

The previous prime is 25530941. The next prime is 25530977. The reversal of 25530953 is 35903552.

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 25530953 - 2¹⁰ = 25529929 is a prime.

It is a super-2 number, since 2×25530953² = 1303659122176418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25530913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26750 + ... + 27687.

It is an arithmetic number, because the mean of its divisors is an integer number (3701784).

Almost surely, 2^25530953 is an apocalyptic number.

It is an amenable number.

25530953 is a deficient number, since it is larger than the sum of its proper divisors (4083319).

25530953 is an equidigital number, since it uses as much as digits as its factorization.

25530953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54511.

The product of its (nonzero) digits is 20250, while the sum is 32.

The square root of 25530953 is about 5052.8163433871. The cubic root of 25530953 is about 294.4573111844.

The spelling of 25530953 in words is "twenty-five million, five hundred thirty thousand, nine hundred fifty-three".