25132170546 has 48 divisors (see below), whose sum is σ = 62247976128. Its totient is φ = 7178781600.

The previous prime is 25132170533. The next prime is 25132170577. The reversal of 25132170546 is 64507123152.

25132170546 is a `hidden beast` number, since 2 + 513 + 21 + 70 + 54 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 25132170546.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 513481 + ... + 560291.

It is an arithmetic number, because the mean of its divisors is an integer number (1296832836).

Almost surely, 2^25132170546 is an apocalyptic number.

25132170546 is an abundant number, since it is smaller than the sum of its proper divisors (37115805582).

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

25132170546 is a wasteful number, since it uses less digits than its factorization.

25132170546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51087 (or 51084 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

Adding to 25132170546 its reverse (64507123152), we get a palindrome (89639293698).

The spelling of 25132170546 in words is "twenty-five billion, one hundred thirty-two million, one hundred seventy thousand, five hundred forty-six".