25158672 has 120 divisors (see below), whose sum is σ = 87821760. Its totient is φ = 6531840.

The previous prime is 25158671. The next prime is 25158697. The reversal of 25158672 is 27685152.

It is a happy number.

25158672 is a `hidden beast` number, since 2 + 5 + 1 + 586 + 72 = 666.

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 (25158671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9954 + ... + 12222.

It is an arithmetic number, because the mean of its divisors is an integer number (731848).

Almost surely, 2^25158672 is an apocalyptic number.

25158672 is a gapful number since it is divisible by the number (22) 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 25158672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43910880).

25158672 is an abundant number, since it is smaller than the sum of its proper divisors (62663088).

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

25158672 is a wasteful number, since it uses less digits than its factorization.

25158672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2301 (or 2292 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 25158672 is about 5015.8421027780. The cubic root of 25158672 is about 293.0190826525.

The spelling of 25158672 in words is "twenty-five million, one hundred fifty-eight thousand, six hundred seventy-two".