245351533253 has 2 divisors, whose sum is σ = 245351533254. Its totient is φ = 245351533252.

The previous prime is 245351533157. The next prime is 245351533313. The reversal of 245351533253 is 352335153542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 233991810529 + 11359722724 = 483727^2 + 106582^2 .

It is a cyclic number.

It is not a de Polignac number, because 245351533253 - 2²⁸ = 245083097797 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 245351533253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245351538253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122675766626 + 122675766627.

It is an arithmetic number, because the mean of its divisors is an integer number (122675766627).

Almost surely, 2^245351533253 is an apocalyptic number.

It is an amenable number.

245351533253 is a deficient number, since it is larger than the sum of its proper divisors (1).

245351533253 is an equidigital number, since it uses as much as digits as its factorization.

245351533253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 810000, while the sum is 41.

Adding to 245351533253 its reverse (352335153542), we get a palindrome (597686686795).

The spelling of 245351533253 in words is "two hundred forty-five billion, three hundred fifty-one million, five hundred thirty-three thousand, two hundred fifty-three".