25258830 has 32 divisors (see below), whose sum is σ = 63258624. Its totient is φ = 6442656.

The previous prime is 25258817. The next prime is 25258837. The reversal of 25258830 is 3885252.

It is a junction number, because it is equal to n+sod(n) for n = 25258791 and 25258800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25258837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17614 + ... + 18993.

It is an arithmetic number, because the mean of its divisors is an integer number (1976832).

Almost surely, 2^25258830 is an apocalyptic number.

25258830 is an abundant number, since it is smaller than the sum of its proper divisors (37999794).

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

25258830 is a wasteful number, since it uses less digits than its factorization.

25258830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36640.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 25258830 is about 5025.8163515990. The cubic root of 25258830 is about 293.4074092648.

The spelling of 25258830 in words is "twenty-five million, two hundred fifty-eight thousand, eight hundred thirty".