5405113521 has 12 divisors (see below), whose sum is σ = 8218301520. Its totient is φ = 3413755800.

The previous prime is 5405113507. The next prime is 5405113543. The reversal of 5405113521 is 1253115045.

5405113521 is a `hidden beast` number, since 540 + 5 + 113 + 5 + 2 + 1 = 666.

5405113521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5405113521 - 2⁹ = 5405113009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5405113621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15804255 + ... + 15804596.

It is an arithmetic number, because the mean of its divisors is an integer number (684858460).

Almost surely, 2^5405113521 is an apocalyptic number.

It is an amenable number.

5405113521 is a deficient number, since it is larger than the sum of its proper divisors (2813187999).

5405113521 is a wasteful number, since it uses less digits than its factorization.

5405113521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31608876 (or 31608873 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 5405113521 is about 73519.4771540168. The cubic root of 5405113521 is about 1754.9642469644.

Adding to 5405113521 its reverse (1253115045), we get a palindrome (6658228566).

The spelling of 5405113521 in words is "five billion, four hundred five million, one hundred thirteen thousand, five hundred twenty-one".