25725319 has 4 divisors (see below), whose sum is σ = 26555200. Its totient is φ = 24895440.

The previous prime is 25725317. The next prime is 25725341. The reversal of 25725319 is 91352752.

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 25725319 - 2¹ = 25725317 is a prime.

It is a super-2 number, since 2×25725319² = 1323584075303522, 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 (25725317) 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, 414894 + ... + 414955.

It is an arithmetic number, because the mean of its divisors is an integer number (6638800).

Almost surely, 2^25725319 is an apocalyptic number.

25725319 is a deficient number, since it is larger than the sum of its proper divisors (829881).

25725319 is an equidigital number, since it uses as much as digits as its factorization.

25725319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829880.

The product of its digits is 18900, while the sum is 34.

The square root of 25725319 is about 5072.0133083422. The cubic root of 25725319 is about 295.2026530547.

The spelling of 25725319 in words is "twenty-five million, seven hundred twenty-five thousand, three hundred nineteen".