15530055545 has 8 divisors (see below), whose sum is σ = 18666772224. Its totient is φ = 12403574064.

The previous prime is 15530055539. The next prime is 15530055557. The reversal of 15530055545 is 54555003551.

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 15530055545 - 2¹⁶ = 15529990009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15530055499 and 15530055508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2555459 + ... + 2561528.

It is an arithmetic number, because the mean of its divisors is an integer number (2333346528).

Almost surely, 2^15530055545 is an apocalyptic number.

It is an amenable number.

15530055545 is a deficient number, since it is larger than the sum of its proper divisors (3136716679).

15530055545 is an equidigital number, since it uses as much as digits as its factorization.

15530055545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5117599.

The product of its (nonzero) digits is 187500, while the sum is 38.

The spelling of 15530055545 in words is "fifteen billion, five hundred thirty million, fifty-five thousand, five hundred forty-five".