2521000002 has 16 divisors (see below), whose sum is σ = 5102748000. Its totient is φ = 830208672.

The previous prime is 2520999953. The next prime is 2521000003. The reversal of 2521000002 is 2000001252.

It is not an unprimeable number, because it can be changed into a prime (2521000003) 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, 2530627 + ... + 2531622.

It is an arithmetic number, because the mean of its divisors is an integer number (318921750).

Almost surely, 2^2521000002 is an apocalyptic number.

2521000002 is an abundant number, since it is smaller than the sum of its proper divisors (2581747998).

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

2521000002 is a wasteful number, since it uses less digits than its factorization.

2521000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5062337.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 2521000002 is about 50209.5608624493. The cubic root of 2521000002 is about 1360.9984021829.

Adding to 2521000002 its reverse (2000001252), we get a palindrome (4521001254).

The spelling of 2521000002 in words is "two billion, five hundred twenty-one million, two", and thus it is an aban number.