249253061 has 4 divisors (see below), whose sum is σ = 249285324. Its totient is φ = 249220800.

The previous prime is 249253033. The next prime is 249253073. The reversal of 249253061 is 160352942.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 32604100 + 216648961 = 5710^2 + 14719^2 .

It is a cyclic number.

It is not a de Polignac number, because 249253061 - 2²⁶ = 182144197 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 (249253091) 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, 3101 + ... + 22541.

It is an arithmetic number, because the mean of its divisors is an integer number (62321331).

Almost surely, 2^249253061 is an apocalyptic number.

It is an amenable number.

249253061 is a deficient number, since it is larger than the sum of its proper divisors (32263).

249253061 is a wasteful number, since it uses less digits than its factorization.

249253061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32262.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 249253061 is about 15787.7503463920. The cubic root of 249253061 is about 629.3325096333.

The spelling of 249253061 in words is "two hundred forty-nine million, two hundred fifty-three thousand, sixty-one".