25906230 has 96 divisors (see below), whose sum is σ = 79881984. Its totient is φ = 5917536.

The previous prime is 25906229. The next prime is 25906261. The reversal of 25906230 is 3260952.

It is a super-2 number, since 2×25906230² = 1342265505625800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25906194 and 25906203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16249 + ... + 17771.

It is an arithmetic number, because the mean of its divisors is an integer number (832104).

Almost surely, 2^25906230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25906230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39940992).

25906230 is an abundant number, since it is smaller than the sum of its proper divisors (53975754).

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

25906230 is a wasteful number, since it uses less digits than its factorization.

25906230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552 (or 1540 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 25906230 is about 5089.8163031685. The cubic root of 25906230 is about 295.8930326299.

The spelling of 25906230 in words is "twenty-five million, nine hundred six thousand, two hundred thirty".