25485820044510 has 512 divisors, whose sum is σ = 74975281274880. Its totient is φ = 5419596644352.

The previous prime is 25485820044493. The next prime is 25485820044521. The reversal of 25485820044510 is 1544002858452.

It is a super-2 number, since 2×25485820044510² (a number of 28 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 25485820044510.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 7213646704 + ... + 7213650236.

It is an arithmetic number, because the mean of its divisors is an integer number (146436096240).

Almost surely, 2^{25485820044510} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25485820044510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37487640637440).

25485820044510 is an abundant number, since it is smaller than the sum of its proper divisors (49489461230370).

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

25485820044510 is a wasteful number, since it uses less digits than its factorization.

25485820044510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3932.

The product of its (nonzero) digits is 2048000, while the sum is 48.

The spelling of 25485820044510 in words is "twenty-five trillion, four hundred eighty-five billion, eight hundred twenty million, forty-four thousand, five hundred ten".