25725953 has 4 divisors (see below), whose sum is σ = 28064688. Its totient is φ = 23387220.

The previous prime is 25725907. The next prime is 25725961. The reversal of 25725953 is 35952752.

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 25725953 - 2¹⁶ = 25660417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25725053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1169351 + ... + 1169372.

It is an arithmetic number, because the mean of its divisors is an integer number (7016172).

Almost surely, 2^25725953 is an apocalyptic number.

It is an amenable number.

25725953 is a deficient number, since it is larger than the sum of its proper divisors (2338735).

25725953 is a wasteful number, since it uses less digits than its factorization.

25725953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2338734.

The product of its digits is 94500, while the sum is 38.

The square root of 25725953 is about 5072.0758077931. The cubic root of 25725953 is about 295.2050781228.

The spelling of 25725953 in words is "twenty-five million, seven hundred twenty-five thousand, nine hundred fifty-three".