25811452 has 6 divisors (see below), whose sum is σ = 45170048. Its totient is φ = 12905724.

The previous prime is 25811449. The next prime is 25811453. The reversal of 25811452 is 25411852.

It is a self number, because there is not a number n which added to its sum of digits gives 25811452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25811453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3226428 + ... + 3226435.

Almost surely, 2^25811452 is an apocalyptic number.

It is an amenable number.

25811452 is a deficient number, since it is larger than the sum of its proper divisors (19358596).

25811452 is a wasteful number, since it uses less digits than its factorization.

25811452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6452867 (or 6452865 counting only the distinct ones).

The product of its digits is 3200, while the sum is 28.

The square root of 25811452 is about 5080.4972197611. The cubic root of 25811452 is about 295.5317499142.

The spelling of 25811452 in words is "twenty-five million, eight hundred eleven thousand, four hundred fifty-two".