245220431245325 has 18 divisors (see below), whose sum is σ = 323012158371006. Its totient is φ = 184636559991040.

The previous prime is 245220431245319. The next prime is 245220431245373. The reversal of 245220431245325 is 523542134022542.

It can be written as a sum of positive squares in 9 ways, for example, as 6451615240009 + 238768816005316 = 2540003^2 + 15452146^2 .

It is not a de Polignac number, because 245220431245325 - 2⁶ = 245220431245261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16970264834 + ... + 16970279283.

Almost surely, 2^{245220431245325} is an apocalyptic number.

245220431245325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

245220431245325 is a deficient number, since it is larger than the sum of its proper divisors (77791727125681).

245220431245325 is a wasteful number, since it uses less digits than its factorization.

245220431245325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33940544161 (or 33940544139 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 44.

Adding to 245220431245325 its reverse (523542134022542), we get a palindrome (768762565267867).

The spelling of 245220431245325 in words is "two hundred forty-five trillion, two hundred twenty billion, four hundred thirty-one million, two hundred forty-five thousand, three hundred twenty-five".