315263006557 has 2 divisors, whose sum is σ = 315263006558. Its totient is φ = 315263006556.

The previous prime is 315263006533. The next prime is 315263006587. The reversal of 315263006557 is 755600362513.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 265821705241 + 49441301316 = 515579^2 + 222354^2 .

It is a cyclic number.

It is not a de Polignac number, because 315263006557 - 2¹⁵ = 315262973789 is a prime.

It is a super-3 number, since 3×315263006557³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315263006587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157631503278 + 157631503279.

It is an arithmetic number, because the mean of its divisors is an integer number (157631503279).

Almost surely, 2^315263006557 is an apocalyptic number.

It is an amenable number.

315263006557 is a deficient number, since it is larger than the sum of its proper divisors (1).

315263006557 is an equidigital number, since it uses as much as digits as its factorization.

315263006557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567000, while the sum is 43.

The spelling of 315263006557 in words is "three hundred fifteen billion, two hundred sixty-three million, six thousand, five hundred fifty-seven".