5242720400020 has 24 divisors (see below), whose sum is σ = 11010718845000. Its totient is φ = 2096896540032.

The previous prime is 5242720400017. The next prime is 5242720400053. The reversal of 5242720400020 is 200040272425.

It can be written as a sum of positive squares in 4 ways, for example, as 930403001476 + 4312317398544 = 964574^2 + 2076612^2 .

It is a super-2 number, since 2×5242720400020² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

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, 11751795 + ... + 12189754.

It is an arithmetic number, because the mean of its divisors is an integer number (458779951875).

Almost surely, 2^{5242720400020} is an apocalyptic number.

It is an amenable number.

5242720400020 is an abundant number, since it is smaller than the sum of its proper divisors (5767998444980).

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

5242720400020 is a wasteful number, since it uses less digits than its factorization.

5242720400020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23952507 (or 23952505 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 28.

Adding to 5242720400020 its reverse (200040272425), we get a palindrome (5442760672445).

The spelling of 5242720400020 in words is "five trillion, two hundred forty-two billion, seven hundred twenty million, four hundred thousand, twenty".