53556211240 has 128 divisors (see below), whose sum is σ = 146072678400. Its totient is φ = 17262685440.

The previous prime is 53556211223. The next prime is 53556211249. The reversal of 53556211240 is 4211265535.

It is a junction number, because it is equal to n+sod(n) for n = 53556211196 and 53556211205.

It is not an unprimeable number, because it can be changed into a prime (53556211249) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 658497 + ... + 735343.

It is an arithmetic number, because the mean of its divisors is an integer number (1141192800).

Almost surely, 2^53556211240 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 53556211240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73036339200).

53556211240 is an abundant number, since it is smaller than the sum of its proper divisors (92516467160).

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

53556211240 is a wasteful number, since it uses less digits than its factorization.

53556211240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77015 (or 77011 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 53556211240 its reverse (4211265535), we get a palindrome (57767476775).

The spelling of 53556211240 in words is "fifty-three billion, five hundred fifty-six million, two hundred eleven thousand, two hundred forty".