249550533 has 12 divisors (see below), whose sum is σ = 370204588. Its totient is φ = 161870400.

The previous prime is 249550519. The next prime is 249550537. The reversal of 249550533 is 335055942.

It can be written as a sum of positive squares in 2 ways, for example, as 230523489 + 19027044 = 15183^2 + 4362^2 .

It is not a de Polignac number, because 249550533 - 2⁴ = 249550517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249550537) 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 11 ways as a sum of consecutive naturals, for example, 374368 + ... + 375033.

Almost surely, 2^249550533 is an apocalyptic number.

It is an amenable number.

249550533 is a deficient number, since it is larger than the sum of its proper divisors (120654055).

249550533 is a wasteful number, since it uses less digits than its factorization.

249550533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749444 (or 749441 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The square root of 249550533 is about 15797.1685121100. The cubic root of 249550533 is about 629.5827698493.

The spelling of 249550533 in words is "two hundred forty-nine million, five hundred fifty thousand, five hundred thirty-three".