25972719 has 24 divisors (see below), whose sum is σ = 38092560. Its totient is φ = 15719424.

The previous prime is 25972697. The next prime is 25972729. The reversal of 25972719 is 91727952.

It is not a de Polignac number, because 25972719 - 2⁹ = 25972207 is a prime.

It is a super-2 number, since 2×25972719² = 1349164264505922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25972729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24627 + ... + 25659.

It is an arithmetic number, because the mean of its divisors is an integer number (1587190).

Almost surely, 2^25972719 is an apocalyptic number.

25972719 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

25972719 is a deficient number, since it is larger than the sum of its proper divisors (12119841).

25972719 is a wasteful number, since it uses less digits than its factorization.

25972719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099 (or 1082 counting only the distinct ones).

The product of its digits is 79380, while the sum is 42.

The square root of 25972719 is about 5096.3436893522. The cubic root of 25972719 is about 296.1459553805.

The spelling of 25972719 in words is "twenty-five million, nine hundred seventy-two thousand, seven hundred nineteen".