2520602989 has 2 divisors, whose sum is σ = 2520602990. Its totient is φ = 2520602988.

The previous prime is 2520602969. The next prime is 2520603011. The reversal of 2520602989 is 9892060252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2465916964 + 54686025 = 49658^2 + 7395^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520602989 - 2⁵ = 2520602957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2520602969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260301494 + 1260301495.

It is an arithmetic number, because the mean of its divisors is an integer number (1260301495).

Almost surely, 2^2520602989 is an apocalyptic number.

It is an amenable number.

2520602989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520602989 is an equidigital number, since it uses as much as digits as its factorization.

2520602989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 2520602989 is about 50205.6071470110. The cubic root of 2520602989 is about 1360.9269540241.

The spelling of 2520602989 in words is "two billion, five hundred twenty million, six hundred two thousand, nine hundred eighty-nine".