245120550025 has 12 divisors (see below), whose sum is σ = 327330211852. Its totient is φ = 181012098240.

The previous prime is 245120549983. The next prime is 245120550043. The reversal of 245120550025 is 520055021542.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 40106889 + 245080443136 = 6333^2 + 495056^2 .

It is not a de Polignac number, because 245120550025 - 2¹⁹ = 245120025737 is a prime.

It is a Duffinian number.

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, 377108214 + ... + 377108863.

Almost surely, 2^245120550025 is an apocalyptic number.

245120550025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

245120550025 is a deficient number, since it is larger than the sum of its proper divisors (82209661827).

245120550025 is a wasteful number, since it uses less digits than its factorization.

245120550025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754217100 (or 754217095 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

Adding to 245120550025 its reverse (520055021542), we get a palindrome (765175571567).

The spelling of 245120550025 in words is "two hundred forty-five billion, one hundred twenty million, five hundred fifty thousand, twenty-five".