2521021030 has 64 divisors (see below), whose sum is σ = 5253465600. Its totient is φ = 861963520.

The previous prime is 2521020991. The next prime is 2521021051. The reversal of 2521021030 is 301201252.

2521021030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2521020995 and 2521021013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140826 + ... + 157714.

It is an arithmetic number, because the mean of its divisors is an integer number (82085400).

Almost surely, 2^2521021030 is an apocalyptic number.

2521021030 is an abundant number, since it is smaller than the sum of its proper divisors (2732444570).

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

2521021030 is a wasteful number, since it uses less digits than its factorization.

2521021030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16989.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2521021030 is about 50209.7702643619. The cubic root of 2521021030 is about 1361.0021862626.

Adding to 2521021030 its reverse (301201252), we get a palindrome (2822222282).

The spelling of 2521021030 in words is "two billion, five hundred twenty-one million, twenty-one thousand, thirty".