245394117025 has 6 divisors (see below), whose sum is σ = 304288705142. Its totient is φ = 196315293600.

The previous prime is 245394117011. The next prime is 245394117043. The reversal of 245394117025 is 520711493542.

It can be written as a sum of positive squares in 3 ways, for example, as 32821481889 + 212572635136 = 181167^2 + 461056^2 .

It is not a de Polignac number, because 245394117025 - 2⁵ = 245394116993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4907882316 + ... + 4907882365.

Almost surely, 2^245394117025 is an apocalyptic number.

245394117025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

245394117025 is a deficient number, since it is larger than the sum of its proper divisors (58894588117).

245394117025 is an equidigital number, since it uses as much as digits as its factorization.

245394117025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9815764691 (or 9815764686 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 245394117025 in words is "two hundred forty-five billion, three hundred ninety-four million, one hundred seventeen thousand, twenty-five".