25443120 has 40 divisors (see below), whose sum is σ = 78874416. Its totient is φ = 6784768.

The previous prime is 25443097. The next prime is 25443133. The reversal of 25443120 is 2134452.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

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, 52767 + ... + 53246.

Almost surely, 2^25443120 is an apocalyptic number.

25443120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25443120 is an abundant number, since it is smaller than the sum of its proper divisors (53431296).

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

25443120 is a wasteful number, since it uses less digits than its factorization.

25443120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106029 (or 106023 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 25443120 is about 5044.1173658035. The cubic root of 25443120 is about 294.1192537638.

Adding to 25443120 its reverse (2134452), we get a palindrome (27577572).

The spelling of 25443120 in words is "twenty-five million, four hundred forty-three thousand, one hundred twenty".