505021026 has 64 divisors (see below), whose sum is σ = 1097349120. Its totient is φ = 154419840.

The previous prime is 505021003. The next prime is 505021037. The reversal of 505021026 is 620120505.

It is a junction number, because it is equal to n+sod(n) for n = 505020993 and 505021011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 780235 + ... + 780881.

It is an arithmetic number, because the mean of its divisors is an integer number (17146080).

Almost surely, 2^505021026 is an apocalyptic number.

505021026 is an abundant number, since it is smaller than the sum of its proper divisors (592328094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505021026 is a wasteful number, since it uses less digits than its factorization.

505021026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 505021026 is about 22472.6728717347. The cubic root of 505021026 is about 796.3484760326.

The spelling of 505021026 in words is "five hundred five million, twenty-one thousand, twenty-six".