25552025 has 12 divisors (see below), whose sum is σ = 31823484. Its totient is φ = 20352000.

The previous prime is 25552013. The next prime is 25552027. The reversal of 25552025 is 52025552.

It can be written as a sum of positive squares in 6 ways, for example, as 2550409 + 23001616 = 1597^2 + 4796^2 .

It is not a de Polignac number, because 25552025 - 2⁶ = 25551961 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25551985 and 25552003.

It is not an unprimeable number, because it can be changed into a prime (25552027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3905 + ... + 8145.

It is an arithmetic number, because the mean of its divisors is an integer number (2651957).

Almost surely, 2^25552025 is an apocalyptic number.

25552025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25552025 is a deficient number, since it is larger than the sum of its proper divisors (6271459).

25552025 is a wasteful number, since it uses less digits than its factorization.

25552025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4492 (or 4487 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 26.

The square root of 25552025 is about 5054.9010870639. The cubic root of 25552025 is about 294.5382991286.

Adding to 25552025 its reverse (52025552), we get a palindrome (77577577).

The spelling of 25552025 in words is "twenty-five million, five hundred fifty-two thousand, twenty-five".