505234155 has 16 divisors (see below), whose sum is σ = 812611584. Its totient is φ = 268045920.

The previous prime is 505234153. The next prime is 505234181. The reversal of 505234155 is 551432505.

It is a happy number.

It is not a de Polignac number, because 505234155 - 2¹ = 505234153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505234153) 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, 85309 + ... + 91038.

It is an arithmetic number, because the mean of its divisors is an integer number (50788224).

Almost surely, 2^505234155 is an apocalyptic number.

505234155 is a deficient number, since it is larger than the sum of its proper divisors (307377429).

505234155 is a wasteful number, since it uses less digits than its factorization.

505234155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176546.

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 505234155 is about 22477.4143308344. The cubic root of 505234155 is about 796.4604852860.

The spelling of 505234155 in words is "five hundred five million, two hundred thirty-four thousand, one hundred fifty-five".