25485483540 has 96 divisors (see below), whose sum is σ = 79315479936. Its totient is φ = 6061719040.

The previous prime is 25485483521. The next prime is 25485483553. The reversal of 25485483540 is 4538458452.

It is a super-2 number, since 2×25485483540² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25485483540.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 329307 + ... + 399266.

It is an arithmetic number, because the mean of its divisors is an integer number (826202916).

Almost surely, 2^25485483540 is an apocalyptic number.

25485483540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25485483540 is an abundant number, since it is smaller than the sum of its proper divisors (53829996396).

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

25485483540 is a wasteful number, since it uses less digits than its factorization.

25485483540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728649 (or 728647 counting only the distinct ones).

The product of its (nonzero) digits is 3072000, while the sum is 48.

The spelling of 25485483540 in words is "twenty-five billion, four hundred eighty-five million, four hundred eighty-three thousand, five hundred forty".