505074425890 has 16 divisors (see below), whose sum is σ = 918135294840. Its totient is φ = 200029475200.

The previous prime is 505074425879. The next prime is 505074425903. The reversal of 505074425890 is 98524470505.

It can be written as a sum of positive squares in 4 ways, for example, as 447653326761 + 57421099129 = 669069^2 + 239627^2 .

It is a super-2 number, since 2×505074425890² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250035835 + ... + 250037854.

Almost surely, 2^505074425890 is an apocalyptic number.

505074425890 is a deficient number, since it is larger than the sum of its proper divisors (413060868950).

505074425890 is a wasteful number, since it uses less digits than its factorization.

505074425890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500073797.

The product of its (nonzero) digits is 2016000, while the sum is 49.

The spelling of 505074425890 in words is "five hundred five billion, seventy-four million, four hundred twenty-five thousand, eight hundred ninety".