249534899 has 8 divisors (see below), whose sum is σ = 253508640. Its totient is φ = 245592000.

The previous prime is 249534871. The next prime is 249534941. The reversal of 249534899 is 998435942.

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 249534899 - 2¹² = 249530803 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 249534899.

It is not an unprimeable number, because it can be changed into a prime (249534839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8879 + ... + 24039.

It is an arithmetic number, because the mean of its divisors is an integer number (31688580).

Almost surely, 2^249534899 is an apocalyptic number.

249534899 is a deficient number, since it is larger than the sum of its proper divisors (3973741).

249534899 is a wasteful number, since it uses less digits than its factorization.

249534899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15421.

The product of its digits is 2799360, while the sum is 53.

The square root of 249534899 is about 15796.6736688456. The cubic root of 249534899 is about 629.5696220746.

The spelling of 249534899 in words is "two hundred forty-nine million, five hundred thirty-four thousand, eight hundred ninety-nine".