505550026 has 8 divisors (see below), whose sum is σ = 760359204. Its totient is φ = 252096960.

The previous prime is 505549999. The next prime is 505550027. The reversal of 505550026 is 620055505.

It can be written as a sum of positive squares in 2 ways, for example, as 468765801 + 36784225 = 21651^2 + 6065^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 505549976 and 505550003.

It is not an unprimeable number, because it can be changed into a prime (505550027) 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, 338095 + ... + 339586.

Almost surely, 2^505550026 is an apocalyptic number.

505550026 is a deficient number, since it is larger than the sum of its proper divisors (254809178).

505550026 is a wasteful number, since it uses less digits than its factorization.

505550026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678056.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 505550026 is about 22484.4396416722. The cubic root of 505550026 is about 796.6264323403.

The spelling of 505550026 in words is "five hundred five million, five hundred fifty thousand, twenty-six".