25319424 has 96 divisors (see below), whose sum is σ = 72923760. Its totient is φ = 7766016.

The previous prime is 25319351. The next prime is 25319429. The reversal of 25319424 is 42491352.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 25319391 and 25319400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25319429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79714 + ... + 80030.

Almost surely, 2^25319424 is an apocalyptic number.

25319424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25319424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36461880).

25319424 is an abundant number, since it is smaller than the sum of its proper divisors (47604336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25319424 is a wasteful number, since it uses less digits than its factorization.

25319424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 335 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 25319424 is about 5031.8410149765. The cubic root of 25319424 is about 293.6418425418.

The spelling of 25319424 in words is "twenty-five million, three hundred nineteen thousand, four hundred twenty-four".