505474075090 has 16 divisors (see below), whose sum is σ = 909861944472. Its totient is φ = 202187716864.

The previous prime is 505474075069. The next prime is 505474075097. The reversal of 505474075090 is 90570474505.

It is a Cunningham number, because it is equal to 710967²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 475146897481 + 30327177609 = 689309^2 + 174147^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 505474075090.

It is not an unprimeable number, because it can be changed into a prime (505474075097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1416042 + ... + 1736698.

Almost surely, 2^505474075090 is an apocalyptic number.

505474075090 is a deficient number, since it is larger than the sum of its proper divisors (404387869382).

505474075090 is a wasteful number, since it uses less digits than its factorization.

505474075090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478301.

The product of its (nonzero) digits is 882000, while the sum is 46.

The spelling of 505474075090 in words is "five hundred five billion, four hundred seventy-four million, seventy-five thousand, ninety".