249550923 has 4 divisors (see below), whose sum is σ = 332734568. Its totient is φ = 166367280.

The previous prime is 249550919. The next prime is 249550957. The reversal of 249550923 is 329055942.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 249550923 - 2² = 249550919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249550913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41591818 + ... + 41591823.

It is an arithmetic number, because the mean of its divisors is an integer number (83183642).

Almost surely, 2^249550923 is an apocalyptic number.

249550923 is a deficient number, since it is larger than the sum of its proper divisors (83183645).

249550923 is an equidigital number, since it uses as much as digits as its factorization.

249550923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83183644.

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 249550923 is about 15797.1808560895. The cubic root of 249550923 is about 629.5830978218.

The spelling of 249550923 in words is "two hundred forty-nine million, five hundred fifty thousand, nine hundred twenty-three".