505212542 has 4 divisors (see below), whose sum is σ = 757818816. Its totient is φ = 252606270.

The previous prime is 505212529. The next prime is 505212551. The reversal of 505212542 is 245212505.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 126303134 + ... + 126303137.

It is an arithmetic number, because the mean of its divisors is an integer number (189454704).

Almost surely, 2^505212542 is an apocalyptic number.

505212542 is a deficient number, since it is larger than the sum of its proper divisors (252606274).

505212542 is a wasteful number, since it uses less digits than its factorization.

505212542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252606273.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 505212542 is about 22476.9335542017. The cubic root of 505212542 is about 796.4491280794.

The spelling of 505212542 in words is "five hundred five million, two hundred twelve thousand, five hundred forty-two".