15048505 has 4 divisors (see below), whose sum is σ = 18058212. Its totient is φ = 12038800.

The previous prime is 15048503. The next prime is 15048541. The reversal of 15048505 is 50584051.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10738729 + 4309776 = 3277^2 + 2076^2 .

It is not a de Polignac number, because 15048505 - 2¹ = 15048503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15048503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1504846 + ... + 1504855.

It is an arithmetic number, because the mean of its divisors is an integer number (4514553).

Almost surely, 2^15048505 is an apocalyptic number.

It is an amenable number.

15048505 is a deficient number, since it is larger than the sum of its proper divisors (3009707).

15048505 is an equidigital number, since it uses as much as digits as its factorization.

15048505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3009706.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 15048505 is about 3879.2402606696. The cubic root of 15048505 is about 246.8867516705.

The spelling of 15048505 in words is "fifteen million, forty-eight thousand, five hundred five".