2598211409 has 2 divisors, whose sum is σ = 2598211410. Its totient is φ = 2598211408.

The previous prime is 2598211387. The next prime is 2598211423. The reversal of 2598211409 is 9041128952.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1842126400 + 756085009 = 42920^2 + 27497^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2598211409 is a prime.

It is not a weakly prime, because it can be changed into another prime (2598211459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1299105704 + 1299105705.

It is an arithmetic number, because the mean of its divisors is an integer number (1299105705).

Almost surely, 2^2598211409 is an apocalyptic number.

It is an amenable number.

2598211409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2598211409 is an equidigital number, since it uses as much as digits as its factorization.

2598211409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 2598211409 is about 50972.6535408939. The cubic root of 2598211409 is about 1374.7534824613.

The spelling of 2598211409 in words is "two billion, five hundred ninety-eight million, two hundred eleven thousand, four hundred nine".