25323040 has 24 divisors (see below), whose sum is σ = 59826060. Its totient is φ = 10129152.

The previous prime is 25323037. The next prime is 25323041. The reversal of 25323040 is 4032352.

It can be written as a sum of positive squares in 2 ways, for example, as 25040016 + 283024 = 5004^2 + 532^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25322999 and 25323017.

It is not an unprimeable number, because it can be changed into a prime (25323041) 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, 78975 + ... + 79294.

Almost surely, 2^25323040 is an apocalyptic number.

25323040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25323040 is an abundant number, since it is smaller than the sum of its proper divisors (34503020).

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

25323040 is a wasteful number, since it uses less digits than its factorization.

25323040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158284 (or 158276 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 25323040 is about 5032.2003139780. The cubic root of 25323040 is about 293.6558207213.

Adding to 25323040 its reverse (4032352), we get a palindrome (29355392).

The spelling of 25323040 in words is "twenty-five million, three hundred twenty-three thousand, forty".