2520338693 has 2 divisors, whose sum is σ = 2520338694. Its totient is φ = 2520338692.

The previous prime is 2520338633. The next prime is 2520338701. The reversal of 2520338693 is 3968330252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1782781729 + 737556964 = 42223^2 + 27158^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520338693 - 2⁶ = 2520338629 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2520338693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2520338633) 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 as a sum of consecutive naturals, namely, 1260169346 + 1260169347.

It is an arithmetic number, because the mean of its divisors is an integer number (1260169347).

Almost surely, 2^2520338693 is an apocalyptic number.

It is an amenable number.

2520338693 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520338693 is an equidigital number, since it uses as much as digits as its factorization.

2520338693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 41.

The square root of 2520338693 is about 50202.9749417303. The cubic root of 2520338693 is about 1360.8793860250.

The spelling of 2520338693 in words is "two billion, five hundred twenty million, three hundred thirty-eight thousand, six hundred ninety-three".