25138148 has 24 divisors (see below), whose sum is σ = 51899904. Its totient is φ = 10425600.

The previous prime is 25138147. The next prime is 25138151. The reversal of 25138148 is 84183152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25138147) 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, 13613 + ... + 15348.

It is an arithmetic number, because the mean of its divisors is an integer number (2162496).

Almost surely, 2^25138148 is an apocalyptic number.

25138148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25138148 is an abundant number, since it is smaller than the sum of its proper divisors (26761756).

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

25138148 is a wasteful number, since it uses less digits than its factorization.

25138148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29003 (or 29001 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 25138148 is about 5013.7957676794. The cubic root of 25138148 is about 292.9393810458.

The spelling of 25138148 in words is "twenty-five million, one hundred thirty-eight thousand, one hundred forty-eight".