25999952 has 20 divisors (see below), whose sum is σ = 54954816. Its totient is φ = 11818080.

The previous prime is 25999949. The next prime is 26000003.

25999952 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 25999952.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73688 + ... + 74039.

Almost surely, 2^25999952 is an apocalyptic number.

25999952 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25999952 is an abundant number, since it is smaller than the sum of its proper divisors (28954864).

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

25999952 is a wasteful number, since it uses less digits than its factorization.

25999952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147746 (or 147740 counting only the distinct ones).

The product of its digits is 656100, while the sum is 50.

The square root of 25999952 is about 5099.0148068034. The cubic root of 25999952 is about 296.2494245332.

The spelling of 25999952 in words is "twenty-five million, nine hundred ninety-nine thousand, nine hundred fifty-two".