1517252505 has 16 divisors (see below), whose sum is σ = 2555373120. Its totient is φ = 766611648.

The previous prime is 1517252491. The next prime is 1517252507. The reversal of 1517252505 is 5052527151.

It is not a de Polignac number, because 1517252505 - 2⁴ = 1517252489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1517252507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2661562 + ... + 2662131.

It is an arithmetic number, because the mean of its divisors is an integer number (159710820).

Almost surely, 2^1517252505 is an apocalyptic number.

1517252505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1517252505 is a deficient number, since it is larger than the sum of its proper divisors (1038120615).

1517252505 is a wasteful number, since it uses less digits than its factorization.

1517252505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5323720.

The product of its (nonzero) digits is 17500, while the sum is 33.

The square root of 1517252505 is about 38951.9255621593. The cubic root of 1517252505 is about 1149.0862319116.

Adding to 1517252505 its reverse (5052527151), we get a palindrome (6569779656).

The spelling of 1517252505 in words is "one billion, five hundred seventeen million, two hundred fifty-two thousand, five hundred five".