2555700397 has 2 divisors, whose sum is σ = 2555700398. Its totient is φ = 2555700396.

The previous prime is 2555700349. The next prime is 2555700409. The reversal of 2555700397 is 7930075552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1362274281 + 1193426116 = 36909^2 + 34546^2 .

It is a cyclic number.

It is not a de Polignac number, because 2555700397 - 2³¹ = 408216749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2555700307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277850198 + 1277850199.

It is an arithmetic number, because the mean of its divisors is an integer number (1277850199).

Almost surely, 2^2555700397 is an apocalyptic number.

It is an amenable number.

2555700397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2555700397 is an equidigital number, since it uses as much as digits as its factorization.

2555700397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 330750, while the sum is 43.

The square root of 2555700397 is about 50553.9355243486. The cubic root of 2555700397 is about 1367.2144721694.

The spelling of 2555700397 in words is "two billion, five hundred fifty-five million, seven hundred thousand, three hundred ninety-seven".