505212635051 has 4 divisors (see below), whose sum is σ = 505220564112. Its totient is φ = 505204705992.

The previous prime is 505212635009. The next prime is 505212635099. The reversal of 505212635051 is 150536212505.

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 505212635051 - 2²⁶ = 505145526187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505212635951) 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, 3868175 + ... + 3996648.

It is an arithmetic number, because the mean of its divisors is an integer number (126305141028).

Almost surely, 2^505212635051 is an apocalyptic number.

505212635051 is a deficient number, since it is larger than the sum of its proper divisors (7929061).

505212635051 is an equidigital number, since it uses as much as digits as its factorization.

505212635051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7929060.

The product of its (nonzero) digits is 45000, while the sum is 35.

Adding to 505212635051 its reverse (150536212505), we get a palindrome (655748847556).

The spelling of 505212635051 in words is "five hundred five billion, two hundred twelve million, six hundred thirty-five thousand, fifty-one".