253649249 has 8 divisors (see below), whose sum is σ = 290169600. Its totient is φ = 217200096.

The previous prime is 253649239. The next prime is 253649251. The reversal of 253649249 is 942946352.

253649249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 253649249 - 2¹² = 253645153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253649239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9929 + ... + 24614.

It is an arithmetic number, because the mean of its divisors is an integer number (36271200).

Almost surely, 2^253649249 is an apocalyptic number.

It is an amenable number.

253649249 is a deficient number, since it is larger than the sum of its proper divisors (36520351).

253649249 is a wasteful number, since it uses less digits than its factorization.

253649249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35599.

The product of its digits is 466560, while the sum is 44.

The square root of 253649249 is about 15926.3696114337. The cubic root of 253649249 is about 633.0109076899.

The spelling of 253649249 in words is "two hundred fifty-three million, six hundred forty-nine thousand, two hundred forty-nine".