53011140 has 288 divisors, whose sum is σ = 198414720. Its totient is φ = 10450944.

The previous prime is 53011139. The next prime is 53011141. The reversal of 53011140 is 4111035.

It is an interprime number because it is at equal distance from previous prime (53011139) and next prime (53011141).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (53011141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 726144 + ... + 726216.

It is an arithmetic number, because the mean of its divisors is an integer number (688940).

Almost surely, 2^53011140 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 53011140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99207360).

53011140 is an abundant number, since it is smaller than the sum of its proper divisors (145403580).

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

53011140 is a wasteful number, since it uses less digits than its factorization.

53011140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 53011140 is about 7280.8749474222. The cubic root of 53011140 is about 375.6548912032.

Adding to 53011140 its reverse (4111035), we get a palindrome (57122175).

It can be divided in two parts, 5301 and 1140, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 53011140 in words is "fifty-three million, eleven thousand, one hundred forty".