501012506 has 16 divisors (see below), whose sum is σ = 760962600. Its totient is φ = 247365888.

The previous prime is 501012503. The next prime is 501012509. The reversal of 501012506 is 605210105.

It is an interprime number because it is at equal distance from previous prime (501012503) and next prime (501012509).

It can be written as a sum of positive squares in 4 ways, for example, as 263575225 + 237437281 = 16235^2 + 15409^2 .

It is not an unprimeable number, because it can be changed into a prime (501012503) 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, 188966 + ... + 191598.

Almost surely, 2^501012506 is an apocalyptic number.

501012506 is a deficient number, since it is larger than the sum of its proper divisors (259950094).

501012506 is a wasteful number, since it uses less digits than its factorization.

501012506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3793.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 501012506 is about 22383.3086472934. The cubic root of 501012506 is about 794.2359157861.

The spelling of 501012506 in words is "five hundred one million, twelve thousand, five hundred six".