25424641 has 12 divisors (see below), whose sum is σ = 29419600. Its totient is φ = 21894840.

The previous prime is 25424621. The next prime is 25424647. The reversal of 25424641 is 14642452.

It is not a de Polignac number, because 25424641 - 2²¹ = 23327489 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (25424647) 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 11 ways as a sum of consecutive naturals, for example, 3231 + ... + 7828.

Almost surely, 2^25424641 is an apocalyptic number.

It is an amenable number.

25424641 is a deficient number, since it is larger than the sum of its proper divisors (3994959).

25424641 is a wasteful number, since it uses less digits than its factorization.

25424641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11100 (or 11089 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 25424641 is about 5042.2852953795. The cubic root of 25424641 is about 294.0480315497.

The spelling of 25424641 in words is "twenty-five million, four hundred twenty-four thousand, six hundred forty-one".