25361946 has 48 divisors (see below), whose sum is σ = 57104424. Its totient is φ = 8128512.

The previous prime is 25361933. The next prime is 25361969. The reversal of 25361946 is 64916352.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17015625 + 8346321 = 4125^2 + 2889^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25361946.

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 23 ways as a sum of consecutive naturals, for example, 75090 + ... + 75426.

Almost surely, 2^25361946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25361946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28552212).

25361946 is an abundant number, since it is smaller than the sum of its proper divisors (31742478).

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

25361946 is a wasteful number, since it uses less digits than its factorization.

25361946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495 (or 492 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 25361946 is about 5036.0645349320. The cubic root of 25361946 is about 293.8061334706.

The spelling of 25361946 in words is "twenty-five million, three hundred sixty-one thousand, nine hundred forty-six".