53020240520 has 64 divisors (see below), whose sum is σ = 128536254000. Its totient is φ = 19566931968.

The previous prime is 53020240517. The next prime is 53020240523. The reversal of 53020240520 is 2504202035.

It is an interprime number because it is at equal distance from previous prime (53020240517) and next prime (53020240523).

It can be written as a sum of positive squares in 8 ways, for example, as 19873668676 + 33146571844 = 140974^2 + 182062^2 .

It is a super-2 number, since 2×53020240520² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53020240523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1061876 + ... + 1110684.

Almost surely, 2^53020240520 is an apocalyptic number.

It is an amenable number.

53020240520 is an abundant number, since it is smaller than the sum of its proper divisors (75516013480).

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

53020240520 is a wasteful number, since it uses less digits than its factorization.

53020240520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50922 (or 50918 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

Adding to 53020240520 its reverse (2504202035), we get a palindrome (55524442555).

The spelling of 53020240520 in words is "fifty-three billion, twenty million, two hundred forty thousand, five hundred twenty".