53497438765056 has 896 divisors, whose sum is σ = 188473357432080. Its totient is φ = 14963363020800.

The previous prime is 53497438765049. The next prime is 53497438765103. The reversal of 53497438765056 is 65056783479435.

It is a happy number.

53497438765056 is a `hidden beast` number, since 5 + 3 + 4 + 9 + 7 + 43 + 8 + 76 + 505 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

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 55 ways as a sum of consecutive naturals, for example, 3415957866 + ... + 3415973526.

Almost surely, 2^{53497438765056} 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 53497438765056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94236678716040).

53497438765056 is an abundant number, since it is smaller than the sum of its proper divisors (134975918667024).

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

53497438765056 is an equidigital number, since it uses as much as digits as its factorization.

53497438765056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15733 (or 15690 counting only the distinct ones).

The product of its (nonzero) digits is 2286144000, while the sum is 72.

The spelling of 53497438765056 in words is "fifty-three trillion, four hundred ninety-seven billion, four hundred thirty-eight million, seven hundred sixty-five thousand, fifty-six".