53649952356 has 576 divisors, whose sum is σ = 177299103744. Its totient is φ = 12276126720.

The previous prime is 53649952277. The next prime is 53649952399. The reversal of 53649952356 is 65325994635.

It is a junction number, because it is equal to n+sod(n) for n = 53649952296 and 53649952305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 329140731 + ... + 329140893.

It is an arithmetic number, because the mean of its divisors is an integer number (307810944).

Almost surely, 2^53649952356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53649952356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88649551872).

53649952356 is an abundant number, since it is smaller than the sum of its proper divisors (123649151388).

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

53649952356 is a wasteful number, since it uses less digits than its factorization.

53649952356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 299 counting only the distinct ones).

The product of its digits is 26244000, while the sum is 57.

The spelling of 53649952356 in words is "fifty-three billion, six hundred forty-nine million, nine hundred fifty-two thousand, three hundred fifty-six".