245548985 has 32 divisors (see below), whose sum is σ = 336199680. Its totient is φ = 170539200.

The previous prime is 245548981. The next prime is 245548991. The reversal of 245548985 is 589845542.

It is a happy number.

It is not a de Polignac number, because 245548985 - 2² = 245548981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245548981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133784 + ... + 135606.

It is an arithmetic number, because the mean of its divisors is an integer number (10506240).

Almost surely, 2^245548985 is an apocalyptic number.

It is an amenable number.

245548985 is a deficient number, since it is larger than the sum of its proper divisors (90650695).

245548985 is a wasteful number, since it uses less digits than its factorization.

245548985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949.

The product of its digits is 2304000, while the sum is 50.

The square root of 245548985 is about 15670.0027121887. The cubic root of 245548985 is about 626.1994969918.

The spelling of 245548985 in words is "two hundred forty-five million, five hundred forty-eight thousand, nine hundred eighty-five".