2521630039 has 2 divisors, whose sum is σ = 2521630040. Its totient is φ = 2521630038.

The previous prime is 2521630003. The next prime is 2521630063. The reversal of 2521630039 is 9300361252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2521630039 - 2⁹ = 2521629527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2521630079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260815019 + 1260815020.

It is an arithmetic number, because the mean of its divisors is an integer number (1260815020).

Almost surely, 2^2521630039 is an apocalyptic number.

2521630039 is a deficient number, since it is larger than the sum of its proper divisors (1).

2521630039 is an equidigital number, since it uses as much as digits as its factorization.

2521630039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 2521630039 is about 50215.8345444940. The cubic root of 2521630039 is about 1361.1117709423. Note that the first 3 decimals are identical.

It can be divided in two parts, 25216 and 30039, that added together give a palindrome (55255).

The spelling of 2521630039 in words is "two billion, five hundred twenty-one million, six hundred thirty thousand, thirty-nine".