5123153455540 has 24 divisors (see below), whose sum is σ = 10781959851432. Its totient is φ = 2044816126080.

The previous prime is 5123153455529. The next prime is 5123153455549. The reversal of 5123153455540 is 455543513215.

It can be written as a sum of positive squares in 4 ways, for example, as 1690426426896 + 3432727028644 = 1300164^2 + 1852762^2 .

It is a super-2 number, since 2×5123153455540² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5123153455549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277819059 + ... + 277837498.

It is an arithmetic number, because the mean of its divisors is an integer number (449248327143).

Almost surely, 2^{5123153455540} is an apocalyptic number.

It is an amenable number.

5123153455540 is an abundant number, since it is smaller than the sum of its proper divisors (5658806395892).

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

5123153455540 is a wasteful number, since it uses less digits than its factorization.

5123153455540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555657027 (or 555657025 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 43.

Adding to 5123153455540 its reverse (455543513215), we get a palindrome (5578696968755).

The spelling of 5123153455540 in words is "five trillion, one hundred twenty-three billion, one hundred fifty-three million, four hundred fifty-five thousand, five hundred forty".