25420330332 has 24 divisors (see below), whose sum is σ = 65904560400. Its totient is φ = 8473443408.

The previous prime is 25420330303. The next prime is 25420330343. The reversal of 25420330332 is 23303302452.

It is a super-3 number, since 3×25420330332³ (a number of 32 digits) contains 333 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 25420330296 and 25420330305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117686607 + ... + 117686822.

It is an arithmetic number, because the mean of its divisors is an integer number (2746023350).

Almost surely, 2^25420330332 is an apocalyptic number.

It is an amenable number.

25420330332 is an abundant number, since it is smaller than the sum of its proper divisors (40484230068).

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

25420330332 is a wasteful number, since it uses less digits than its factorization.

25420330332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235373442 (or 235373434 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 27.

Adding to 25420330332 its reverse (23303302452), we get a palindrome (48723632784).

The spelling of 25420330332 in words is "twenty-five billion, four hundred twenty million, three hundred thirty thousand, three hundred thirty-two".