25165385 has 8 divisors (see below), whose sum is σ = 34512576. Its totient is φ = 17256240.

The previous prime is 25165379. The next prime is 25165391. The reversal of 25165385 is 58356152.

It is an interprime number because it is at equal distance from previous prime (25165379) and next prime (25165391).

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

It is not a de Polignac number, because 25165385 - 2⁴ = 25165369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 719011 = 25165385 / (2 + 5 + 1 + 6 + 5 + 3 + 8 + 5).

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, 359471 + ... + 359540.

It is an arithmetic number, because the mean of its divisors is an integer number (4314072).

Almost surely, 2^25165385 is an apocalyptic number.

It is an amenable number.

25165385 is a deficient number, since it is larger than the sum of its proper divisors (9347191).

25165385 is an equidigital number, since it uses as much as digits as its factorization.

25165385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719023.

The product of its digits is 36000, while the sum is 35.

The square root of 25165385 is about 5016.5112379023. The cubic root of 25165385 is about 293.0451420854.

The spelling of 25165385 in words is "twenty-five million, one hundred sixty-five thousand, three hundred eighty-five".