505212156503 has 16 divisors (see below), whose sum is σ = 507842123040. Its totient is φ = 502592004096.

The previous prime is 505212156497. The next prime is 505212156523. The reversal of 505212156503 is 305651212505.

It is a cyclic number.

It is not a de Polignac number, because 505212156503 - 2⁴ = 505212156487 is a prime.

It is a super-3 number, since 3×505212156503³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505212156523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267448583 + ... + 267450471.

It is an arithmetic number, because the mean of its divisors is an integer number (31740132690).

Almost surely, 2^505212156503 is an apocalyptic number.

505212156503 is a deficient number, since it is larger than the sum of its proper divisors (2629966537).

505212156503 is a wasteful number, since it uses less digits than its factorization.

505212156503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3826.

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 505212156503 in words is "five hundred five billion, two hundred twelve million, one hundred fifty-six thousand, five hundred three".