53931749256 has 216 divisors, whose sum is σ = 186764833710. Its totient is φ = 14008135680.

The previous prime is 53931749231. The next prime is 53931749273. The reversal of 53931749256 is 65294713935.

53931749256 is a `hidden beast` number, since 5 + 3 + 93 + 17 + 492 + 56 = 666.

It can be written as a sum of positive squares in only one way, i.e., 35356785156 + 18574964100 = 188034^2 + 136290^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 363720 + ... + 490056.

Almost surely, 2^53931749256 is an apocalyptic number.

53931749256 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53931749256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93382416855).

53931749256 is an abundant number, since it is smaller than the sum of its proper divisors (132833084454).

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

53931749256 is a wasteful number, since it uses less digits than its factorization.

53931749256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126385 (or 126360 counting only the distinct ones).

The product of its digits is 6123600, while the sum is 54.

The spelling of 53931749256 in words is "fifty-three billion, nine hundred thirty-one million, seven hundred forty-nine thousand, two hundred fifty-six".