505110961 has 4 divisors (see below), whose sum is σ = 506735424. Its totient is φ = 503486500.

The previous prime is 505110937. The next prime is 505110967. The reversal of 505110961 is 169011505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 505110961 - 2¹⁵ = 505078193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505110967) 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, 811765 + ... + 812386.

It is an arithmetic number, because the mean of its divisors is an integer number (126683856).

Almost surely, 2^505110961 is an apocalyptic number.

It is an amenable number.

505110961 is a deficient number, since it is larger than the sum of its proper divisors (1624463).

505110961 is a wasteful number, since it uses less digits than its factorization.

505110961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624462.

The product of its (nonzero) digits is 1350, while the sum is 28.

The square root of 505110961 is about 22474.6737684888. The cubic root of 505110961 is about 796.3957449221.

The spelling of 505110961 in words is "five hundred five million, one hundred ten thousand, nine hundred sixty-one".