25085747 has 4 divisors (see below), whose sum is σ = 25266360. Its totient is φ = 24905136.

The previous prime is 25085717. The next prime is 25085759. The reversal of 25085747 is 74758052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25085747 - 2¹⁶ = 25020211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25085747.

It is not an unprimeable number, because it can be changed into a prime (25085707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90098 + ... + 90375.

It is an arithmetic number, because the mean of its divisors is an integer number (6316590).

Almost surely, 2^25085747 is an apocalyptic number.

25085747 is a deficient number, since it is larger than the sum of its proper divisors (180613).

25085747 is a wasteful number, since it uses less digits than its factorization.

25085747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180612.

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 25085747 is about 5008.5673600342. The cubic root of 25085747 is about 292.7356933425.

The spelling of 25085747 in words is "twenty-five million, eighty-five thousand, seven hundred forty-seven".