25508465 has 8 divisors (see below), whose sum is σ = 30907968. Its totient is φ = 20208240.

The previous prime is 25508447. The next prime is 25508471. The reversal of 25508465 is 56480552.

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

It is not a de Polignac number, because 25508465 - 2⁶ = 25508401 is a prime.

It is a super-3 number, since 3×25508465³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

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, 24251 + ... + 25280.

It is an arithmetic number, because the mean of its divisors is an integer number (3863496).

Almost surely, 2^25508465 is an apocalyptic number.

It is an amenable number.

25508465 is a deficient number, since it is larger than the sum of its proper divisors (5399503).

25508465 is a wasteful number, since it uses less digits than its factorization.

25508465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49639.

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 25508465 is about 5050.5905595287. The cubic root of 25508465 is about 294.3708318281.

The spelling of 25508465 in words is "twenty-five million, five hundred eight thousand, four hundred sixty-five".