2500121004 has 48 divisors (see below), whose sum is σ = 6144364800. Its totient is φ = 789034176.

The previous prime is 2500121003. The next prime is 2500121017. The reversal of 2500121004 is 4001210052.

It is not an unprimeable number, because it can be changed into a prime (2500121003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 707089 + ... + 710615.

It is an arithmetic number, because the mean of its divisors is an integer number (128007600).

Almost surely, 2^2500121004 is an apocalyptic number.

It is an amenable number.

2500121004 is an abundant number, since it is smaller than the sum of its proper divisors (3644243796).

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

2500121004 is a wasteful number, since it uses less digits than its factorization.

2500121004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6662 (or 6660 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 2500121004 is about 50001.2100253584. The cubic root of 2500121004 is about 1357.2307049701.

Adding to 2500121004 its reverse (4001210052), we get a palindrome (6501331056).

The spelling of 2500121004 in words is "two billion, five hundred million, one hundred twenty-one thousand, four".