2520735389 has 2 divisors, whose sum is σ = 2520735390. Its totient is φ = 2520735388.

The previous prime is 2520735359. The next prime is 2520735421. The reversal of 2520735389 is 9835370252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2346627364 + 174108025 = 48442^2 + 13195^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520735389 - 2¹² = 2520731293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2520735359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260367694 + 1260367695.

It is an arithmetic number, because the mean of its divisors is an integer number (1260367695).

Almost surely, 2^2520735389 is an apocalyptic number.

It is an amenable number.

2520735389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520735389 is an equidigital number, since it uses as much as digits as its factorization.

2520735389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 44.

The square root of 2520735389 is about 50206.9257075157. The cubic root of 2520735389 is about 1360.9507821286.

The spelling of 2520735389 in words is "two billion, five hundred twenty million, seven hundred thirty-five thousand, three hundred eighty-nine".