25438248 has 48 divisors (see below), whose sum is σ = 75160800. Its totient is φ = 7708320.

The previous prime is 25438243. The next prime is 25438271. The reversal of 25438248 is 84283452.

It is a super-2 number, since 2×25438248² = 1294208922619008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (25438243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15268 + ... + 16851.

It is an arithmetic number, because the mean of its divisors is an integer number (1565850).

Almost surely, 2^25438248 is an apocalyptic number.

It is an amenable number.

25438248 is an abundant number, since it is smaller than the sum of its proper divisors (49722552).

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

25438248 is a wasteful number, since it uses less digits than its factorization.

25438248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32142 (or 32135 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 25438248 is about 5043.6344038798. The cubic root of 25438248 is about 294.1004793305.

The spelling of 25438248 in words is "twenty-five million, four hundred thirty-eight thousand, two hundred forty-eight".