25147938 has 16 divisors (see below), whose sum is σ = 51655680. Its totient is φ = 8156016.

The previous prime is 25147919. The next prime is 25147949. The reversal of 25147938 is 83974152.

It is a junction number, because it is equal to n+sod(n) for n = 25147896 and 25147905.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56418 + ... + 56861.

It is an arithmetic number, because the mean of its divisors is an integer number (3228480).

Almost surely, 2^25147938 is an apocalyptic number.

25147938 is an abundant number, since it is smaller than the sum of its proper divisors (26507742).

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

25147938 is a wasteful number, since it uses less digits than its factorization.

25147938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113321.

The product of its digits is 60480, while the sum is 39.

The square root of 25147938 is about 5014.7719788640. The cubic root of 25147938 is about 292.9774043232.

The spelling of 25147938 in words is "twenty-five million, one hundred forty-seven thousand, nine hundred thirty-eight".