248219985 has 32 divisors (see below), whose sum is σ = 429182208. Its totient is φ = 121777920.

The previous prime is 248219963. The next prime is 248219987. The reversal of 248219985 is 589912842.

248219985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 248219985 - 2⁶ = 248219921 is a prime.

It is a super-2 number, since 2×248219985² = 123226321906800450, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (248219987) 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, 58599 + ... + 62691.

It is an arithmetic number, because the mean of its divisors is an integer number (13411944).

Almost surely, 2^248219985 is an apocalyptic number.

It is an amenable number.

248219985 is a deficient number, since it is larger than the sum of its proper divisors (180962223).

248219985 is a wasteful number, since it uses less digits than its factorization.

248219985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4425.

The product of its digits is 414720, while the sum is 48.

The square root of 248219985 is about 15754.9987305617. The cubic root of 248219985 is about 628.4618434871.

The spelling of 248219985 in words is "two hundred forty-eight million, two hundred nineteen thousand, nine hundred eighty-five".