2720250389 has 2 divisors, whose sum is σ = 2720250390. Its totient is φ = 2720250388.

The previous prime is 2720250367. The next prime is 2720250419. The reversal of 2720250389 is 9830520272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2207590225 + 512660164 = 46985^2 + 22642^2 .

It is a cyclic number.

It is not a de Polignac number, because 2720250389 - 2¹² = 2720246293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2720240389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1360125194 + 1360125195.

It is an arithmetic number, because the mean of its divisors is an integer number (1360125195).

Almost surely, 2^2720250389 is an apocalyptic number.

It is an amenable number.

2720250389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2720250389 is an equidigital number, since it uses as much as digits as its factorization.

2720250389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 2720250389 is about 52156.0196813369. The cubic root of 2720250389 is about 1395.9492413530.

The spelling of 2720250389 in words is "two billion, seven hundred twenty million, two hundred fifty thousand, three hundred eighty-nine".