249551022 has 32 divisors (see below), whose sum is σ = 582048000. Its totient is φ = 71299704.

The previous prime is 249551021. The next prime is 249551047. The reversal of 249551022 is 220155942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249551021) 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 15 ways as a sum of consecutive naturals, for example, 58572 + ... + 62687.

It is an arithmetic number, because the mean of its divisors is an integer number (18189000).

Almost surely, 2^249551022 is an apocalyptic number.

249551022 is an abundant number, since it is smaller than the sum of its proper divisors (332496978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249551022 is a wasteful number, since it uses less digits than its factorization.

249551022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121285 (or 121271 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 249551022 is about 15797.1839895597. The cubic root of 249551022 is about 629.5831810763.

The spelling of 249551022 in words is "two hundred forty-nine million, five hundred fifty-one thousand, twenty-two".