25625551632 has 80 divisors (see below), whose sum is σ = 66963422400. Its totient is φ = 8443814400.

The previous prime is 25625551631. The next prime is 25625551661. The reversal of 25625551632 is 23615552652.

It is a super-3 number, since 3×25625551632³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (25625551631) 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 15 ways as a sum of consecutive naturals, for example, 1500582 + ... + 1517562.

It is an arithmetic number, because the mean of its divisors is an integer number (837042780).

Almost surely, 2^25625551632 is an apocalyptic number.

It is an amenable number.

25625551632 is an abundant number, since it is smaller than the sum of its proper divisors (41337870768).

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

25625551632 is a wasteful number, since it uses less digits than its factorization.

25625551632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17352 (or 17346 counting only the distinct ones).

The product of its digits is 540000, while the sum is 42.

The spelling of 25625551632 in words is "twenty-five billion, six hundred twenty-five million, five hundred fifty-one thousand, six hundred thirty-two".