25465645 has 8 divisors (see below), whose sum is σ = 30927456. Its totient is φ = 20126736.

The previous prime is 25465631. The next prime is 25465651. The reversal of 25465645 is 54656452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25465645 - 2¹¹ = 25463597 is a prime.

It is a super-3 number, since 3×25465645³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 30267 + ... + 31096.

It is an arithmetic number, because the mean of its divisors is an integer number (3865932).

Almost surely, 2^25465645 is an apocalyptic number.

It is an amenable number.

25465645 is a deficient number, since it is larger than the sum of its proper divisors (5461811).

25465645 is an equidigital number, since it uses as much as digits as its factorization.

25465645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61451.

The product of its digits is 144000, while the sum is 37.

The square root of 25465645 is about 5046.3496708017. The cubic root of 25465645 is about 294.2060235478.

The spelling of 25465645 in words is "twenty-five million, four hundred sixty-five thousand, six hundred forty-five".