25200126 has 64 divisors (see below), whose sum is σ = 64550400. Its totient is φ = 7138368.

The previous prime is 25200121. The next prime is 25200151. The reversal of 25200126 is 62100252.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 25200099 and 25200108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25200121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61410 + ... + 61818.

It is an arithmetic number, because the mean of its divisors is an integer number (1008600).

Almost surely, 2^25200126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25200126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32275200).

25200126 is an abundant number, since it is smaller than the sum of its proper divisors (39350274).

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

25200126 is a wasteful number, since it uses less digits than its factorization.

25200126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 25200126 is about 5019.9727090892. The cubic root of 25200126 is about 293.1799304072.

Adding to 25200126 its reverse (62100252), we get a palindrome (87300378).

The spelling of 25200126 in words is "twenty-five million, two hundred thousand, one hundred twenty-six".