25145452 has 12 divisors (see below), whose sum is σ = 44043160. Its totient is φ = 12561696.

The previous prime is 25145443. The next prime is 25145453. The reversal of 25145452 is 25454152.

It is a self number, because there is not a number n which added to its sum of digits gives 25145452.

It is not an unprimeable number, because it can be changed into a prime (25145453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4483 + ... + 8389.

Almost surely, 2^25145452 is an apocalyptic number.

It is an amenable number.

25145452 is a deficient number, since it is larger than the sum of its proper divisors (18897708).

25145452 is a wasteful number, since it uses less digits than its factorization.

25145452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5520 (or 5518 counting only the distinct ones).

The product of its digits is 8000, while the sum is 28.

The square root of 25145452 is about 5014.5241050373. The cubic root of 25145452 is about 292.9677499090.

The spelling of 25145452 in words is "twenty-five million, one hundred forty-five thousand, four hundred fifty-two".