25013985 has 8 divisors (see below), whose sum is σ = 40022400. Its totient is φ = 13340784.

The previous prime is 25013983. The next prime is 25013999. The reversal of 25013985 is 58931052.

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

It is not a de Polignac number, because 25013985 - 2¹ = 25013983 is a prime.

It is a super-3 number, since 3×25013985³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (25013983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 833785 + ... + 833814.

It is an arithmetic number, because the mean of its divisors is an integer number (5002800).

Almost surely, 2^25013985 is an apocalyptic number.

It is an amenable number.

25013985 is a deficient number, since it is larger than the sum of its proper divisors (15008415).

25013985 is a wasteful number, since it uses less digits than its factorization.

25013985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667607.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 25013985 is about 5001.3983044745. The cubic root of 25013985 is about 292.4562868418.

The spelling of 25013985 in words is "twenty-five million, thirteen thousand, nine hundred eighty-five".