243425521053 has 64 divisors (see below), whose sum is σ = 437344911360. Its totient is φ = 131789073600.

The previous prime is 243425521039. The next prime is 243425521057. The reversal of 243425521053 is 350125524342.

243425521053 is a `hidden beast` number, since 2 + 4 + 3 + 42 + 552 + 10 + 53 = 666.

It is not a de Polignac number, because 243425521053 - 2²⁹ = 242888650141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243425520999 and 243425521017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243425521057) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 897201 + ... + 1136582.

It is an arithmetic number, because the mean of its divisors is an integer number (6833514240).

Almost surely, 2^243425521053 is an apocalyptic number.

It is an amenable number.

243425521053 is a deficient number, since it is larger than the sum of its proper divisors (193919390307).

243425521053 is a wasteful number, since it uses less digits than its factorization.

243425521053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033847 (or 2033841 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The spelling of 243425521053 in words is "two hundred forty-three billion, four hundred twenty-five million, five hundred twenty-one thousand, fifty-three".