25442528 has 12 divisors (see below), whose sum is σ = 50090040. Its totient is φ = 12721248.

The previous prime is 25442497. The next prime is 25442563. The reversal of 25442528 is 82524452.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 795079 = 25442528 / (2 + 5 + 4 + 4 + 2 + 5 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 25442494 and 25442503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 397508 + ... + 397571.

It is an arithmetic number, because the mean of its divisors is an integer number (4174170).

Almost surely, 2^25442528 is an apocalyptic number.

It is an amenable number.

25442528 is a deficient number, since it is larger than the sum of its proper divisors (24647512).

25442528 is an equidigital number, since it uses as much as digits as its factorization.

25442528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795089 (or 795081 counting only the distinct ones).

The product of its digits is 25600, while the sum is 32.

The square root of 25442528 is about 5044.0586832431. The cubic root of 25442528 is about 294.1169725977.

The spelling of 25442528 in words is "twenty-five million, four hundred forty-two thousand, five hundred twenty-eight".