25424452 has 24 divisors (see below), whose sum is σ = 47650680. Its totient is φ = 11827200.

The previous prime is 25424447. The next prime is 25424459. The reversal of 25424452 is 25442452.

It can be written as a sum of positive squares in 4 ways, for example, as 264196 + 25160256 = 514^2 + 5016^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25424452.

It is not an unprimeable number, because it can be changed into a prime (25424459) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3952 + ... + 8152.

It is an arithmetic number, because the mean of its divisors is an integer number (1985445).

Almost surely, 2^25424452 is an apocalyptic number.

It is an amenable number.

25424452 is a deficient number, since it is larger than the sum of its proper divisors (22226228).

25424452 is a wasteful number, since it uses less digits than its factorization.

25424452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4311 (or 4309 counting only the distinct ones).

The product of its digits is 12800, while the sum is 28.

The square root of 25424452 is about 5042.2665538426. The cubic root of 25424452 is about 294.0473029230.

The spelling of 25424452 in words is "twenty-five million, four hundred twenty-four thousand, four hundred fifty-two".