25497428 has 24 divisors (see below), whose sum is σ = 49000224. Its totient is φ = 11512800.

The previous prime is 25497427. The next prime is 25497443. The reversal of 25497428 is 82479452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25497421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5063 + ... + 8753.

It is an arithmetic number, because the mean of its divisors is an integer number (2041676).

Almost surely, 2^25497428 is an apocalyptic number.

It is an amenable number.

25497428 is a deficient number, since it is larger than the sum of its proper divisors (23502796).

25497428 is a wasteful number, since it uses less digits than its factorization.

25497428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3863 (or 3861 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 25497428 is about 5049.4977968111. The cubic root of 25497428 is about 294.3283695896.

The spelling of 25497428 in words is "twenty-five million, four hundred ninety-seven thousand, four hundred twenty-eight".