25898106 has 32 divisors (see below), whose sum is σ = 59064768. Its totient is φ = 7499520.

The previous prime is 25898071. The next prime is 25898107. The reversal of 25898106 is 60189852.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (25898107) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8440 + ... + 11091.

It is an arithmetic number, because the mean of its divisors is an integer number (1845774).

Almost surely, 2^25898106 is an apocalyptic number.

25898106 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

25898106 is an abundant number, since it is smaller than the sum of its proper divisors (33166662).

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

25898106 is a wasteful number, since it uses less digits than its factorization.

25898106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19566.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 25898106 is about 5089.0181764266. The cubic root of 25898106 is about 295.8620994488.

The spelling of 25898106 in words is "twenty-five million, eight hundred ninety-eight thousand, one hundred six".