53143210240 has 72 divisors (see below), whose sum is σ = 129696546168. Its totient is φ = 20856176640.

The previous prime is 53143210231. The next prime is 53143210261. The reversal of 53143210240 is 4201234135.

It can be written as a sum of positive squares in 4 ways, for example, as 15563061504 + 37580148736 = 124752^2 + 193856^2 .

It is a super-2 number, since 2×53143210240² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323841 + ... + 459520.

It is an arithmetic number, because the mean of its divisors is an integer number (1801340919).

Almost surely, 2^53143210240 is an apocalyptic number.

It is an amenable number.

53143210240 is an abundant number, since it is smaller than the sum of its proper divisors (76553335928).

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

53143210240 is an equidigital number, since it uses as much as digits as its factorization.

53143210240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783435 (or 783421 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 53143210240 its reverse (4201234135), we get a palindrome (57344444375).

The spelling of 53143210240 in words is "fifty-three billion, one hundred forty-three million, two hundred ten thousand, two hundred forty".