249876485 has 8 divisors (see below), whose sum is σ = 312888960. Its totient is φ = 191209744.

The previous prime is 249876481. The next prime is 249876491. The reversal of 249876485 is 584678942.

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

It is a cyclic number.

It is not a de Polignac number, because 249876485 - 2² = 249876481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249876481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1086305 + ... + 1086534.

It is an arithmetic number, because the mean of its divisors is an integer number (39111120).

Almost surely, 2^249876485 is an apocalyptic number.

It is an amenable number.

249876485 is a deficient number, since it is larger than the sum of its proper divisors (63012475).

249876485 is a wasteful number, since it uses less digits than its factorization.

249876485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172867.

The product of its digits is 3870720, while the sum is 53.

The square root of 249876485 is about 15807.4819310351. The cubic root of 249876485 is about 629.8567617582.

The spelling of 249876485 in words is "two hundred forty-nine million, eight hundred seventy-six thousand, four hundred eighty-five".