248495489 has 4 divisors (see below), whose sum is σ = 271086000. Its totient is φ = 225904980.

The previous prime is 248495483. The next prime is 248495503. The reversal of 248495489 is 984594842.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 248495489 - 2¹² = 248491393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 248495489.

It is not an unprimeable number, because it can be changed into a prime (248495483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11295239 + ... + 11295260.

It is an arithmetic number, because the mean of its divisors is an integer number (67771500).

Almost surely, 2^248495489 is an apocalyptic number.

It is an amenable number.

248495489 is a deficient number, since it is larger than the sum of its proper divisors (22590511).

248495489 is a wasteful number, since it uses less digits than its factorization.

248495489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22590510.

The product of its digits is 3317760, while the sum is 53.

The square root of 248495489 is about 15763.7396895534. The cubic root of 248495489 is about 628.6942713644.

The spelling of 248495489 in words is "two hundred forty-eight million, four hundred ninety-five thousand, four hundred eighty-nine".