505161615 has 64 divisors (see below), whose sum is σ = 951939072. Its totient is φ = 223948800.

The previous prime is 505161589. The next prime is 505161619. The reversal of 505161615 is 516161505.

It is not a de Polignac number, because 505161615 - 2⁸ = 505161359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505161619) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1166439 + ... + 1166871.

It is an arithmetic number, because the mean of its divisors is an integer number (14874048).

Almost surely, 2^505161615 is an apocalyptic number.

505161615 is a deficient number, since it is larger than the sum of its proper divisors (446777457).

505161615 is a wasteful number, since it uses less digits than its factorization.

505161615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760.

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 505161615 is about 22475.8006531469. The cubic root of 505161615 is about 796.4223656614.

It can be divided in two parts, 5051 and 61615, that added together give a palindrome (66666).

The spelling of 505161615 in words is "five hundred five million, one hundred sixty-one thousand, six hundred fifteen".