25148424 has 64 divisors (see below), whose sum is σ = 72576000. Its totient is φ = 7113024.

The previous prime is 25148401. The next prime is 25148437. The reversal of 25148424 is 42484152.

It is a junction number, because it is equal to n+sod(n) for n = 25148391 and 25148400.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17277 + ... + 18675.

It is an arithmetic number, because the mean of its divisors is an integer number (1134000).

Almost surely, 2^25148424 is an apocalyptic number.

25148424 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 25148424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36288000).

25148424 is an abundant number, since it is smaller than the sum of its proper divisors (47427576).

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

25148424 is a wasteful number, since it uses less digits than its factorization.

25148424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522 (or 1518 counting only the distinct ones).

The product of its digits is 10240, while the sum is 30.

The square root of 25148424 is about 5014.8204354693. The cubic root of 25148424 is about 292.9792916363.

The spelling of 25148424 in words is "twenty-five million, one hundred forty-eight thousand, four hundred twenty-four".