2500000002 has 24 divisors (see below), whose sum is σ = 5467293936. Its totient is φ = 825544536.

The previous prime is 2500000001. The next prime is 2500000033. The reversal of 2500000002 is 2000000052.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a self number, because there is not a number n which added to its sum of digits gives 2500000002.

It is not an unprimeable number, because it can be changed into a prime (2500000001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 647088 + ... + 650939.

It is an arithmetic number, because the mean of its divisors is an integer number (227803914).

Almost surely, 2^2500000002 is an apocalyptic number.

2500000002 is an abundant number, since it is smaller than the sum of its proper divisors (2967293934).

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

2500000002 is a wasteful number, since it uses less digits than its factorization.

2500000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298142 (or 1298139 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 9.

The square root of 2500000002 is about 50000.0000200000. Note that the first 4 decimals coincide. The cubic root of 2500000002 is about 1357.2088086594.

Adding to 2500000002 its reverse (2000000052), we get a palindrome (4500000054).

The spelling of 2500000002 in words is "two billion, five hundred million, two", and thus it is an aban number.