505212153401 has 2 divisors, whose sum is σ = 505212153402. Its totient is φ = 505212153400.

The previous prime is 505212153169. The next prime is 505212153419. The reversal of 505212153401 is 104351212505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 422714527225 + 82497626176 = 650165^2 + 287224^2 .

It is a cyclic number.

It is not a de Polignac number, because 505212153401 - 2³⁴ = 488032284217 is a prime.

It is not a weakly prime, because it can be changed into another prime (505212153491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252606076700 + 252606076701.

It is an arithmetic number, because the mean of its divisors is an integer number (252606076701).

Almost surely, 2^505212153401 is an apocalyptic number.

It is an amenable number.

505212153401 is a deficient number, since it is larger than the sum of its proper divisors (1).

505212153401 is an equidigital number, since it uses as much as digits as its factorization.

505212153401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 505212153401 its reverse (104351212505), we get a palindrome (609563365906).

The spelling of 505212153401 in words is "five hundred five billion, two hundred twelve million, one hundred fifty-three thousand, four hundred one".