1505505 has 16 divisors (see below), whose sum is σ = 2427264. Its totient is φ = 796800.

The previous prime is 1505489. The next prime is 1505507. The reversal of 1505505 is 5055051.

It is not a de Polignac number, because 1505505 - 2⁴ = 1505489 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1505507) 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, 2205 + ... + 2805.

It is an arithmetic number, because the mean of its divisors is an integer number (151704).

2^1505505 is an apocalyptic number.

1505505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1505505 is the 1002-nd pentagonal number.

It is an amenable number.

1505505 is a deficient number, since it is larger than the sum of its proper divisors (921759).

1505505 is a wasteful number, since it uses less digits than its factorization.

1505505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776.

The product of its (nonzero) digits is 625, while the sum is 21.

The square root of 1505505 is about 1226.9902200099. The cubic root of 1505505 is about 114.6112900012.

The spelling of 1505505 in words is "one million, five hundred five thousand, five hundred five".