606557251 has 2 divisors, whose sum is σ = 606557252. Its totient is φ = 606557250.

The previous prime is 606557233. The next prime is 606557257. The reversal of 606557251 is 152755606.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 606557251 - 2¹³ = 606549059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 606557251.

It is not a weakly prime, because it can be changed into another prime (606557257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303278625 + 303278626.

It is an arithmetic number, because the mean of its divisors is an integer number (303278626).

Almost surely, 2^606557251 is an apocalyptic number.

606557251 is a deficient number, since it is larger than the sum of its proper divisors (1).

606557251 is an equidigital number, since it uses as much as digits as its factorization.

606557251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 606557251 is about 24628.3830366510. The cubic root of 606557251 is about 846.4940950869.

The spelling of 606557251 in words is "six hundred six million, five hundred fifty-seven thousand, two hundred fifty-one".