245115225 has 18 divisors (see below), whose sum is σ = 439029006. Its totient is φ = 130728000.

The previous prime is 245115187. The next prime is 245115229. The reversal of 245115225 is 522511542.

245115225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 29289744 + 215825481 = 5412^2 + 14691^2 .

It is not a de Polignac number, because 245115225 - 2⁶ = 245115161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245115229) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 544476 + ... + 544925.

Almost surely, 2^245115225 is an apocalyptic number.

245115225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

245115225 is a deficient number, since it is larger than the sum of its proper divisors (193913781).

245115225 is a wasteful number, since it uses less digits than its factorization.

245115225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089417 (or 1089409 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 245115225 is about 15656.1561374432. The cubic root of 245115225 is about 625.8305544646.

Adding to 245115225 its reverse (522511542), we get a palindrome (767626767).

The spelling of 245115225 in words is "two hundred forty-five million, one hundred fifteen thousand, two hundred twenty-five".