25533320325 has 12 divisors (see below), whose sum is σ = 42215089728. Its totient is φ = 13617770800.

The previous prime is 25533320291. The next prime is 25533320327. The reversal of 25533320325 is 52302333552.

It is not a de Polignac number, because 25533320325 - 2¹⁵ = 25533287557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25533320327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170222061 + ... + 170222210.

It is an arithmetic number, because the mean of its divisors is an integer number (3517924144).

Almost surely, 2^25533320325 is an apocalyptic number.

25533320325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25533320325 is a deficient number, since it is larger than the sum of its proper divisors (16681769403).

25533320325 is a wasteful number, since it uses less digits than its factorization.

25533320325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340444284 (or 340444279 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 33.

Adding to 25533320325 its reverse (52302333552), we get a palindrome (77835653877).

The spelling of 25533320325 in words is "twenty-five billion, five hundred thirty-three million, three hundred twenty thousand, three hundred twenty-five".