5401520513523 has 48 divisors (see below), whose sum is σ = 7887896640000. Its totient is φ = 3561679874880.

The previous prime is 5401520513513. The next prime is 5401520513567. The reversal of 5401520513523 is 3253150251045.

5401520513523 is a `hidden beast` number, since 5 + 40 + 1 + 52 + 0 + 513 + 52 + 3 = 666.

It is not a de Polignac number, because 5401520513523 - 2⁴ = 5401520513507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5401520513513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 980843536 + ... + 980849042.

It is an arithmetic number, because the mean of its divisors is an integer number (164331180000).

Almost surely, 2^{5401520513523} is an apocalyptic number.

5401520513523 is a deficient number, since it is larger than the sum of its proper divisors (2486376126477).

5401520513523 is a wasteful number, since it uses less digits than its factorization.

5401520513523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8632 (or 8629 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

Adding to 5401520513523 its reverse (3253150251045), we get a palindrome (8654670764568).

The spelling of 5401520513523 in words is "five trillion, four hundred one billion, five hundred twenty million, five hundred thirteen thousand, five hundred twenty-three".