249950047 has 2 divisors, whose sum is σ = 249950048. Its totient is φ = 249950046.

The previous prime is 249950023. The next prime is 249950081. The reversal of 249950047 is 740059942.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 249950047 - 2²⁷ = 115732319 is a prime.

It is equal to p_13676737 and since 249950047 and 13676737 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 249949991 and 249950009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249957047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124975023 + 124975024.

It is an arithmetic number, because the mean of its divisors is an integer number (124975024).

Almost surely, 2^249950047 is an apocalyptic number.

249950047 is a deficient number, since it is larger than the sum of its proper divisors (1).

249950047 is an equidigital number, since it uses as much as digits as its factorization.

249950047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 249950047 is about 15809.8085693660. The cubic root of 249950047 is about 629.9185642618.

The spelling of 249950047 in words is "two hundred forty-nine million, nine hundred fifty thousand, forty-seven".