245543340025 has 12 divisors (see below), whose sum is σ = 314972837100. Its totient is φ = 189661062080.

The previous prime is 245543339963. The next prime is 245543340061. The reversal of 245543340025 is 520043345542.

It can be written as a sum of positive squares in 6 ways, for example, as 12784372624 + 232758967401 = 113068^2 + 482451^2 .

It is not a de Polignac number, because 245543340025 - 2¹⁹ = 245542815737 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169339510 + ... + 169340959.

It is an arithmetic number, because the mean of its divisors is an integer number (26247736425).

Almost surely, 2^245543340025 is an apocalyptic number.

245543340025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

245543340025 is a deficient number, since it is larger than the sum of its proper divisors (69429497075).

245543340025 is a wasteful number, since it uses less digits than its factorization.

245543340025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338680508 (or 338680503 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 37.

Adding to 245543340025 its reverse (520043345542), we get a palindrome (765586685567).

The spelling of 245543340025 in words is "two hundred forty-five billion, five hundred forty-three million, three hundred forty thousand, twenty-five".