253345648 has 20 divisors (see below), whose sum is σ = 495363880. Its totient is φ = 125509824.

The previous prime is 253345619. The next prime is 253345649. The reversal of 253345648 is 846543352.

It is a self number, because there is not a number n which added to its sum of digits gives 253345648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253345649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70890 + ... + 74377.

It is an arithmetic number, because the mean of its divisors is an integer number (24768194).

Almost surely, 2^253345648 is an apocalyptic number.

It is an amenable number.

253345648 is a deficient number, since it is larger than the sum of its proper divisors (242018232).

253345648 is a wasteful number, since it uses less digits than its factorization.

253345648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145384 (or 145378 counting only the distinct ones).

The product of its digits is 345600, while the sum is 40.

The square root of 253345648 is about 15916.8353638530. The cubic root of 253345648 is about 632.7582497736.

The spelling of 253345648 in words is "two hundred fifty-three million, three hundred forty-five thousand, six hundred forty-eight".