505800026 has 16 divisors (see below), whose sum is σ = 818112960. Its totient is φ = 233745120.

The previous prime is 505800023. The next prime is 505800037. The reversal of 505800026 is 620008505.

It is a junction number, because it is equal to n+sod(n) for n = 505799968 and 505800004.

It is not an unprimeable number, because it can be changed into a prime (505800023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160766 + ... + 163881.

It is an arithmetic number, because the mean of its divisors is an integer number (51132060).

Almost surely, 2^505800026 is an apocalyptic number.

505800026 is a deficient number, since it is larger than the sum of its proper divisors (312312934).

505800026 is a wasteful number, since it uses less digits than its factorization.

505800026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324709.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 505800026 is about 22489.9983548243. The cubic root of 505800026 is about 796.7577241865.

The spelling of 505800026 in words is "five hundred five million, eight hundred thousand, twenty-six".