25533225 has 48 divisors (see below), whose sum is σ = 47586240. Its totient is φ = 13588560.

The previous prime is 25533163. The next prime is 25533239. The reversal of 25533225 is 52233552.

It is not a de Polignac number, because 25533225 - 2¹⁹ = 25008937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54442 + ... + 54908.

It is an arithmetic number, because the mean of its divisors is an integer number (991380).

Almost surely, 2^25533225 is an apocalyptic number.

25533225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25533225 is a deficient number, since it is larger than the sum of its proper divisors (22053015).

25533225 is an frugal number, since it uses more digits than its factorization.

25533225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498 (or 475 counting only the distinct ones).

The product of its digits is 9000, while the sum is 27.

The square root of 25533225 is about 5053.0411634975. The cubic root of 25533225 is about 294.4660455126.

Adding to 25533225 its reverse (52233552), we get a palindrome (77766777).

It can be divided in two parts, 2553 and 3225, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 25533225 in words is "twenty-five million, five hundred thirty-three thousand, two hundred twenty-five".