253523645644 has 12 divisors (see below), whose sum is σ = 443701576864. Its totient is φ = 126751766544.

The previous prime is 253523645483. The next prime is 253523645647. The reversal of 253523645644 is 446546325352.

It is not an unprimeable number, because it can be changed into a prime (253523645647) 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, 2457204 + ... + 2558299.

Almost surely, 2^253523645644 is an apocalyptic number.

It is an amenable number.

253523645644 is a deficient number, since it is larger than the sum of its proper divisors (190177931220).

253523645644 is a wasteful number, since it uses less digits than its factorization.

253523645644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5028144 (or 5028142 counting only the distinct ones).

The product of its digits is 10368000, while the sum is 49.

The spelling of 253523645644 in words is "two hundred fifty-three billion, five hundred twenty-three million, six hundred forty-five thousand, six hundred forty-four".