505235051 has 4 divisors (see below), whose sum is σ = 507331704. Its totient is φ = 503138400.

The previous prime is 505235047. The next prime is 505235057. The reversal of 505235051 is 150532505.

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

It is a cyclic number.

It is not a de Polignac number, because 505235051 - 2² = 505235047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505235051.

It is not an unprimeable number, because it can be changed into a prime (505235057) 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, 1047965 + ... + 1048446.

It is an arithmetic number, because the mean of its divisors is an integer number (126832926).

Almost surely, 2^505235051 is an apocalyptic number.

505235051 is a deficient number, since it is larger than the sum of its proper divisors (2096653).

505235051 is a wasteful number, since it uses less digits than its factorization.

505235051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2096652.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 505235051 is about 22477.4342619437. The cubic root of 505235051 is about 796.4609561093.

Adding to 505235051 its reverse (150532505), we get a palindrome (655767556).

The spelling of 505235051 in words is "five hundred five million, two hundred thirty-five thousand, fifty-one".