5481565523 has 8 divisors (see below), whose sum is σ = 6287937120. Its totient is φ = 4681016640.

The previous prime is 5481565513. The next prime is 5481565543. The reversal of 5481565523 is 3255651845.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5481565523 - 2⁸ = 5481565267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5481565513) 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, 1453658 + ... + 1457423.

It is an arithmetic number, because the mean of its divisors is an integer number (785992140).

Almost surely, 2^5481565523 is an apocalyptic number.

5481565523 is a deficient number, since it is larger than the sum of its proper divisors (806371597).

5481565523 is a wasteful number, since it uses less digits than its factorization.

5481565523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2911357.

The product of its digits is 720000, while the sum is 44.

The square root of 5481565523 is about 74037.5953350728. The cubic root of 5481565523 is about 1763.1998352064.

The spelling of 5481565523 in words is "five billion, four hundred eighty-one million, five hundred sixty-five thousand, five hundred twenty-three".