20895025 has 12 divisors (see below), whose sum is σ = 26462592. Its totient is φ = 16359440.

The previous prime is 20895013. The next prime is 20895029. The reversal of 20895025 is 52059802.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-20895025 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20895029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7717 + ... + 10066.

It is an arithmetic number, because the mean of its divisors is an integer number (2205216).

Almost surely, 2^20895025 is an apocalyptic number.

20895025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20895025 is a deficient number, since it is larger than the sum of its proper divisors (5567567).

20895025 is a wasteful number, since it uses less digits than its factorization.

20895025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17840 (or 17835 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 20895025 is about 4571.1076338236. The cubic root of 20895025 is about 275.4319382858.

The spelling of 20895025 in words is "twenty million, eight hundred ninety-five thousand, twenty-five".