15225125205140 has 24 divisors (see below), whose sum is σ = 32133430089600. Its totient is φ = 6059446813728.

The previous prime is 15225125205139. The next prime is 15225125205149. The reversal of 15225125205140 is 4150252152251.

15225125205140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 15225125205140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15225125205149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1912700192 + ... + 1912708151.

It is an arithmetic number, because the mean of its divisors is an integer number (1338892920400).

Almost surely, 2^{15225125205140} is an apocalyptic number.

15225125205140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15225125205140 is an abundant number, since it is smaller than the sum of its proper divisors (16908304884460).

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

15225125205140 is a wasteful number, since it uses less digits than its factorization.

15225125205140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3825408551 (or 3825408549 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 35.

Adding to 15225125205140 its reverse (4150252152251), we get a palindrome (19375377357391).

The spelling of 15225125205140 in words is "fifteen trillion, two hundred twenty-five billion, one hundred twenty-five million, two hundred five thousand, one hundred forty".