245445355403531 has 2 divisors, whose sum is σ = 245445355403532. Its totient is φ = 245445355403530.

The previous prime is 245445355403471. The next prime is 245445355403561. The reversal of 245445355403531 is 135304553544542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245445355403531 - 2⁶ = 245445355403467 is a prime.

It is a super-2 number, since 2×245445355403531² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (245445355403561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122722677701765 + 122722677701766.

It is an arithmetic number, because the mean of its divisors is an integer number (122722677701766).

Almost surely, 2^{245445355403531} is an apocalyptic number.

245445355403531 is a deficient number, since it is larger than the sum of its proper divisors (1).

245445355403531 is an equidigital number, since it uses as much as digits as its factorization.

245445355403531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200000, while the sum is 53.

The spelling of 245445355403531 in words is "two hundred forty-five trillion, four hundred forty-five billion, three hundred fifty-five million, four hundred three thousand, five hundred thirty-one".