249909485 has 8 divisors (see below), whose sum is σ = 342733056. Its totient is φ = 171366480.

The previous prime is 249909479. The next prime is 249909493. The reversal of 249909485 is 584909942.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 249909485 - 2¹⁶ = 249843949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3570101 + ... + 3570170.

It is an arithmetic number, because the mean of its divisors is an integer number (42841632).

Almost surely, 2^249909485 is an apocalyptic number.

It is an amenable number.

249909485 is a deficient number, since it is larger than the sum of its proper divisors (92823571).

249909485 is an equidigital number, since it uses as much as digits as its factorization.

249909485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7140283.

The product of its (nonzero) digits is 933120, while the sum is 50.

The square root of 249909485 is about 15808.5257060866. The cubic root of 249909485 is about 629.8844879342.

The spelling of 249909485 in words is "two hundred forty-nine million, nine hundred nine thousand, four hundred eighty-five".