245515311053 has 2 divisors, whose sum is σ = 245515311054. Its totient is φ = 245515311052.

The previous prime is 245515311037. The next prime is 245515311073. The reversal of 245515311053 is 350113515542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169116692644 + 76398618409 = 411238^2 + 276403^2 .

It is a cyclic number.

It is not a de Polignac number, because 245515311053 - 2⁴ = 245515311037 is a prime.

It is a super-2 number, since 2×245515311053² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245515311073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122757655526 + 122757655527.

It is an arithmetic number, because the mean of its divisors is an integer number (122757655527).

Almost surely, 2^245515311053 is an apocalyptic number.

It is an amenable number.

245515311053 is a deficient number, since it is larger than the sum of its proper divisors (1).

245515311053 is an equidigital number, since it uses as much as digits as its factorization.

245515311053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45000, while the sum is 35.

Adding to 245515311053 its reverse (350113515542), we get a palindrome (595628826595).

The spelling of 245515311053 in words is "two hundred forty-five billion, five hundred fifteen million, three hundred eleven thousand, fifty-three".