5481515531 has 8 divisors (see below), whose sum is σ = 5584788864. Its totient is φ = 5379203200.

The previous prime is 5481515527. The next prime is 5481515539. The reversal of 5481515531 is 1355151845.

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 5481515531 - 2² = 5481515527 is a prime.

It is a super-2 number, since 2×5481515531² = 60094025033188423922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5481515539) 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, 228731 + ... + 251556.

It is an arithmetic number, because the mean of its divisors is an integer number (698098608).

Almost surely, 2^5481515531 is an apocalyptic number.

5481515531 is a deficient number, since it is larger than the sum of its proper divisors (103273333).

5481515531 is a wasteful number, since it uses less digits than its factorization.

5481515531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480501.

The product of its digits is 60000, while the sum is 38.

The square root of 5481515531 is about 74037.2577220415. The cubic root of 5481515531 is about 1763.1944750494.

The spelling of 5481515531 in words is "five billion, four hundred eighty-one million, five hundred fifteen thousand, five hundred thirty-one".