516462221 has 4 divisors (see below), whose sum is σ = 563413344. Its totient is φ = 469511100.

The previous prime is 516462211. The next prime is 516462229. The reversal of 516462221 is 122264615.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-516462221 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 (516462229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23475545 + ... + 23475566.

It is an arithmetic number, because the mean of its divisors is an integer number (140853336).

Almost surely, 2^516462221 is an apocalyptic number.

It is an amenable number.

516462221 is a deficient number, since it is larger than the sum of its proper divisors (46951123).

516462221 is a wasteful number, since it uses less digits than its factorization.

516462221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46951122.

The product of its digits is 5760, while the sum is 29.

The square root of 516462221 is about 22725.8051782550. The cubic root of 516462221 is about 802.3173542923.

The spelling of 516462221 in words is "five hundred sixteen million, four hundred sixty-two thousand, two hundred twenty-one".