25855002 has 24 divisors (see below), whose sum is σ = 56137536. Its totient is φ = 8600136.

The previous prime is 25854989. The next prime is 25855003. The reversal of 25855002 is 20055852.

It is a super-2 number, since 2×25855002² = 1336962256840008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25855003) 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, 9343 + ... + 11789.

It is an arithmetic number, because the mean of its divisors is an integer number (2339064).

Almost surely, 2^25855002 is an apocalyptic number.

25855002 is an abundant number, since it is smaller than the sum of its proper divisors (30282534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25855002 is a wasteful number, since it uses less digits than its factorization.

25855002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3042 (or 3039 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 25855002 is about 5084.7814112310. The cubic root of 25855002 is about 295.6978670833.

The spelling of 25855002 in words is "twenty-five million, eight hundred fifty-five thousand, two".