25185023085 has 32 divisors (see below), whose sum is σ = 41733107712. Its totient is φ = 12961040960.

The previous prime is 25185023081. The next prime is 25185023111. The reversal of 25185023085 is 58032058152.

It is not a de Polignac number, because 25185023085 - 2² = 25185023081 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25185023081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201519 + ... + 301628.

It is an arithmetic number, because the mean of its divisors is an integer number (1304159616).

Almost surely, 2^25185023085 is an apocalyptic number.

It is an amenable number.

25185023085 is a deficient number, since it is larger than the sum of its proper divisors (16548084627).

25185023085 is a wasteful number, since it uses less digits than its factorization.

25185023085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503273.

The product of its (nonzero) digits is 96000, while the sum is 39.

The spelling of 25185023085 in words is "twenty-five billion, one hundred eighty-five million, twenty-three thousand, eighty-five".