25345830 has 16 divisors (see below), whose sum is σ = 60830064. Its totient is φ = 6758880.

The previous prime is 25345811. The next prime is 25345841. The reversal of 25345830 is 3854352.

It is a super-2 number, since 2×25345830² = 1284822196777800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 844861 = 25345830 / (2 + 5 + 3 + 4 + 5 + 8 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422401 + ... + 422460.

It is an arithmetic number, because the mean of its divisors is an integer number (3801879).

Almost surely, 2^25345830 is an apocalyptic number.

25345830 is an abundant number, since it is smaller than the sum of its proper divisors (35484234).

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

25345830 is a wasteful number, since it uses less digits than its factorization.

25345830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844871.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 25345830 is about 5034.4642217420. The cubic root of 25345830 is about 293.7438882084.

The spelling of 25345830 in words is "twenty-five million, three hundred forty-five thousand, eight hundred thirty".