245031417507553 has 2 divisors, whose sum is σ = 245031417507554. Its totient is φ = 245031417507552.

The previous prime is 245031417507479. The next prime is 245031417507757. The reversal of 245031417507553 is 355705714130542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175062324756544 + 69969092751009 = 13231112^2 + 8364753^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245031417507553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245031417507553.

It is not a weakly prime, because it can be changed into another prime (245031417504553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122515708753776 + 122515708753777.

It is an arithmetic number, because the mean of its divisors is an integer number (122515708753777).

Almost surely, 2^{245031417507553} is an apocalyptic number.

It is an amenable number.

245031417507553 is a deficient number, since it is larger than the sum of its proper divisors (1).

245031417507553 is an equidigital number, since it uses as much as digits as its factorization.

245031417507553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820000, while the sum is 52.

The spelling of 245031417507553 in words is "two hundred forty-five trillion, thirty-one billion, four hundred seventeen million, five hundred seven thousand, five hundred fifty-three".