505212543 has 12 divisors (see below), whose sum is σ = 796092648. Its totient is φ = 306189360.

The previous prime is 505212529. The next prime is 505212551. The reversal of 505212543 is 345212505.

It is a happy number.

It is not a de Polignac number, because 505212543 - 2⁶ = 505212479 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505212343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2551480 + ... + 2551677.

It is an arithmetic number, because the mean of its divisors is an integer number (66341054).

Almost surely, 2^505212543 is an apocalyptic number.

505212543 is a deficient number, since it is larger than the sum of its proper divisors (290880105).

505212543 is a wasteful number, since it uses less digits than its factorization.

505212543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5103174 (or 5103171 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 505212543 is about 22476.9335764468. The cubic root of 505212543 is about 796.4491286049.

The spelling of 505212543 in words is "five hundred five million, two hundred twelve thousand, five hundred forty-three".