505070257021 has 16 divisors (see below), whose sum is σ = 552337989120. Its totient is φ = 458028316720.

The previous prime is 505070256983. The next prime is 505070257049. The reversal of 505070257021 is 120752070505.

It is a cyclic number.

It is not a de Polignac number, because 505070257021 - 2²⁵ = 505036702589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505070257051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49226790 + ... + 49237048.

It is an arithmetic number, because the mean of its divisors is an integer number (34521124320).

Almost surely, 2^505070257021 is an apocalyptic number.

It is an amenable number.

505070257021 is a deficient number, since it is larger than the sum of its proper divisors (47267732099).

505070257021 is a wasteful number, since it uses less digits than its factorization.

505070257021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20816.

The product of its (nonzero) digits is 24500, while the sum is 34.

The spelling of 505070257021 in words is "five hundred five billion, seventy million, two hundred fifty-seven thousand, twenty-one".