25002515121140 has 12 divisors (see below), whose sum is σ = 52505281754436. Its totient is φ = 10001006048448.

The previous prime is 25002515121137. The next prime is 25002515121169. The reversal of 25002515121140 is 4112151520052.

It can be written as a sum of positive squares in 2 ways, for example, as 14173071501796 + 10829443619344 = 3764714^2 + 3290812^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 625062878009 + ... + 625062878048.

It is an arithmetic number, because the mean of its divisors is an integer number (4375440146203).

Almost surely, 2^{25002515121140} is an apocalyptic number.

25002515121140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25002515121140 is an abundant number, since it is smaller than the sum of its proper divisors (27502766633296).

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

25002515121140 is a wasteful number, since it uses less digits than its factorization.

25002515121140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250125756066 (or 1250125756064 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 29.

Adding to 25002515121140 its reverse (4112151520052), we get a palindrome (29114666641192).

The spelling of 25002515121140 in words is "twenty-five trillion, two billion, five hundred fifteen million, one hundred twenty-one thousand, one hundred forty".