25585530 has 16 divisors (see below), whose sum is σ = 61405344. Its totient is φ = 6822800.

The previous prime is 25585523. The next prime is 25585543. The reversal of 25585530 is 3558552.

It is a junction number, because it is equal to n+sod(n) for n = 25585491 and 25585500.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426396 + ... + 426455.

It is an arithmetic number, because the mean of its divisors is an integer number (3837834).

Almost surely, 2^25585530 is an apocalyptic number.

25585530 is an abundant number, since it is smaller than the sum of its proper divisors (35819814).

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

25585530 is a wasteful number, since it uses less digits than its factorization.

25585530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852861.

The product of its (nonzero) digits is 30000, while the sum is 33.

The square root of 25585530 is about 5058.2141117197. The cubic root of 25585530 is about 294.6669803258. Note that the first 3 decimals are identical.

The spelling of 25585530 in words is "twenty-five million, five hundred eighty-five thousand, five hundred thirty".