15245585505 has 96 divisors (see below), whose sum is σ = 28713484800. Its totient is φ = 7749810432.

The previous prime is 15245585497. The next prime is 15245585549. The reversal of 15245585505 is 50558554251.

15245585505 is a `hidden beast` number, since 1 + 5 + 2 + 45 + 58 + 550 + 5 = 666.

It is not a de Polignac number, because 15245585505 - 2³ = 15245585497 is a prime.

It is a super-2 number, since 2×15245585505² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2780827 + ... + 2786303.

It is an arithmetic number, because the mean of its divisors is an integer number (299098800).

Almost surely, 2^15245585505 is an apocalyptic number.

15245585505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15245585505 is a deficient number, since it is larger than the sum of its proper divisors (13467899295).

15245585505 is an equidigital number, since it uses as much as digits as its factorization.

15245585505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5605 (or 5593 counting only the distinct ones).

The product of its (nonzero) digits is 1000000, while the sum is 45.

The spelling of 15245585505 in words is "fifteen billion, two hundred forty-five million, five hundred eighty-five thousand, five hundred five".