505212040351 has 4 divisors (see below), whose sum is σ = 505266720304. Its totient is φ = 505157360400.

The previous prime is 505212040339. The next prime is 505212040357. The reversal of 505212040351 is 153040212505.

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

It is a cyclic number.

It is not a de Polignac number, because 505212040351 - 2¹³ = 505212032159 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 (505212040357) 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, 27326115 + ... + 27344596.

It is an arithmetic number, because the mean of its divisors is an integer number (126316680076).

Almost surely, 2^505212040351 is an apocalyptic number.

505212040351 is a deficient number, since it is larger than the sum of its proper divisors (54679953).

505212040351 is an equidigital number, since it uses as much as digits as its factorization.

505212040351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54679952.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 505212040351 its reverse (153040212505), we get a palindrome (658252252856).

The spelling of 505212040351 in words is "five hundred five billion, two hundred twelve million, forty thousand, three hundred fifty-one".