25725719 has 4 divisors (see below), whose sum is σ = 25896240. Its totient is φ = 25555200.

The previous prime is 25725673. The next prime is 25725751. The reversal of 25725719 is 91752752.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25725719 - 2⁸ = 25725463 is a prime.

It is a super-2 number, since 2×25725719² = 1323625236133922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25725769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85034 + ... + 85335.

It is an arithmetic number, because the mean of its divisors is an integer number (6474060).

Almost surely, 2^25725719 is an apocalyptic number.

25725719 is a deficient number, since it is larger than the sum of its proper divisors (170521).

25725719 is a wasteful number, since it uses less digits than its factorization.

25725719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170520.

The product of its digits is 44100, while the sum is 38.

The square root of 25725719 is about 5072.0527402621. The cubic root of 25725719 is about 295.2041830707.

The spelling of 25725719 in words is "twenty-five million, seven hundred twenty-five thousand, seven hundred nineteen".