2521630030 has 64 divisors (see below), whose sum is σ = 4849450560. Its totient is φ = 941359104.

The previous prime is 2521630003. The next prime is 2521630039. The reversal of 2521630030 is 300361252.

It is a junction number, because it is equal to n+sod(n) for n = 2521629983 and 2521630010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521630039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5517562 + ... + 5518018.

It is an arithmetic number, because the mean of its divisors is an integer number (75772665).

Almost surely, 2^2521630030 is an apocalyptic number.

2521630030 is a deficient number, since it is larger than the sum of its proper divisors (2327820530).

2521630030 is a wasteful number, since it uses less digits than its factorization.

2521630030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 2521630030 is about 50215.8344548809. The cubic root of 2521630030 is about 1361.1117693230. Note that the first 3 decimals are identical.

Adding to 2521630030 its reverse (300361252), we get a palindrome (2821991282).

The spelling of 2521630030 in words is "two billion, five hundred twenty-one million, six hundred thirty thousand, thirty".