25343825 has 24 divisors (see below), whose sum is σ = 35023800. Its totient is φ = 18063360.

The previous prime is 25343819. The next prime is 25343827. The reversal of 25343825 is 52834352.

It can be written as a sum of positive squares in 12 ways, for example, as 18284176 + 7059649 = 4276^2 + 2657^2 .

It is not a de Polignac number, because 25343825 - 2⁴ = 25343809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25343791 and 25343800.

It is not an unprimeable number, because it can be changed into a prime (25343827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8081 + ... + 10769.

It is an arithmetic number, because the mean of its divisors is an integer number (1459325).

Almost surely, 2^25343825 is an apocalyptic number.

25343825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25343825 is a deficient number, since it is larger than the sum of its proper divisors (9679975).

25343825 is a wasteful number, since it uses less digits than its factorization.

25343825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741 (or 2736 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

The square root of 25343825 is about 5034.2650903583. The cubic root of 25343825 is about 293.7361423974.

The spelling of 25343825 in words is "twenty-five million, three hundred forty-three thousand, eight hundred twenty-five".