25830953 has 4 divisors (see below), whose sum is σ = 25975440. Its totient is φ = 25686468.

The previous prime is 25830949. The next prime is 25831021. The reversal of 25830953 is 35903852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25830953 - 2² = 25830949 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25830053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71975 + ... + 72332.

It is an arithmetic number, because the mean of its divisors is an integer number (6493860).

Almost surely, 2^25830953 is an apocalyptic number.

It is an amenable number.

25830953 is a deficient number, since it is larger than the sum of its proper divisors (144487).

25830953 is a wasteful number, since it uses less digits than its factorization.

25830953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144486.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 25830953 is about 5082.4160593167. The cubic root of 25830953 is about 295.6061576341.

The spelling of 25830953 in words is "twenty-five million, eight hundred thirty thousand, nine hundred fifty-three".