25129948 has 6 divisors (see below), whose sum is σ = 43977416. Its totient is φ = 12564972.

The previous prime is 25129943. The next prime is 25129963. The reversal of 25129948 is 84992152.

It is a self number, because there is not a number n which added to its sum of digits gives 25129948.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25129943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3141240 + ... + 3141247.

Almost surely, 2^25129948 is an apocalyptic number.

It is an amenable number.

25129948 is a deficient number, since it is larger than the sum of its proper divisors (18847468).

25129948 is a wasteful number, since it uses less digits than its factorization.

25129948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6282491 (or 6282489 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 25129948 is about 5012.9779572625. The cubic root of 25129948 is about 292.9075255546.

The spelling of 25129948 in words is "twenty-five million, one hundred twenty-nine thousand, nine hundred forty-eight".