53365365648 has 160 divisors (see below), whose sum is σ = 180708433920. Its totient is φ = 14755374720.

The previous prime is 53365365643. The next prime is 53365365659. The reversal of 53365365648 is 84656356335.

53365365648 is a `hidden beast` number, since 53 + 3 + 6 + 536 + 56 + 4 + 8 = 666.

53365365648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×53365365648³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 53365365594 and 53365365603.

It is not an unprimeable number, because it can be changed into a prime (53365365643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190890 + ... + 378377.

It is an arithmetic number, because the mean of its divisors is an integer number (1129427712).

Almost surely, 2^53365365648 is an apocalyptic number.

It is an amenable number.

53365365648 is an abundant number, since it is smaller than the sum of its proper divisors (127343068272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53365365648 is a wasteful number, since it uses less digits than its factorization.

53365365648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569322 (or 569310 counting only the distinct ones).

The product of its digits is 23328000, while the sum is 54.

The spelling of 53365365648 in words is "fifty-three billion, three hundred sixty-five million, three hundred sixty-five thousand, six hundred forty-eight".