2500189902 has 80 divisors (see below), whose sum is σ = 6446008800. Its totient is φ = 709497792.

The previous prime is 2500189891. The next prime is 2500189919. The reversal of 2500189902 is 2099810052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 161568 + ... + 176364.

It is an arithmetic number, because the mean of its divisors is an integer number (80575110).

Almost surely, 2^2500189902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2500189902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3223004400).

2500189902 is an abundant number, since it is smaller than the sum of its proper divisors (3945818898).

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

2500189902 is a wasteful number, since it uses less digits than its factorization.

2500189902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14967 (or 14958 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 2500189902 is about 50001.8989839386. The cubic root of 2500189902 is about 1357.2431723163.

Adding to 2500189902 its reverse (2099810052), we get a palindrome (4599999954).

The spelling of 2500189902 in words is "two billion, five hundred million, one hundred eighty-nine thousand, nine hundred two".