53325143656 has 8 divisors (see below), whose sum is σ = 99984644370. Its totient is φ = 26662571824.

The previous prime is 53325143647. The next prime is 53325143659. The reversal of 53325143656 is 65634152335.

53325143656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 48880788100 + 4444355556 = 221090^2 + 66666^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×53325143656³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (53325143659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3332821471 + ... + 3332821486.

Almost surely, 2^53325143656 is an apocalyptic number.

It is an amenable number.

53325143656 is a deficient number, since it is larger than the sum of its proper divisors (46659500714).

53325143656 is a wasteful number, since it uses less digits than its factorization.

53325143656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6665642963 (or 6665642959 counting only the distinct ones).

The product of its digits is 972000, while the sum is 43.

The spelling of 53325143656 in words is "fifty-three billion, three hundred twenty-five million, one hundred forty-three thousand, six hundred fifty-six".