505157677 has 4 divisors (see below), whose sum is σ = 505553920. Its totient is φ = 504761436.

The previous prime is 505157659. The next prime is 505157683. The reversal of 505157677 is 776751505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 505157677 - 2¹⁵ = 505124909 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 (505157657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196203 + ... + 198760.

It is an arithmetic number, because the mean of its divisors is an integer number (126388480).

Almost surely, 2^505157677 is an apocalyptic number.

It is an amenable number.

505157677 is a deficient number, since it is larger than the sum of its proper divisors (396243).

505157677 is a wasteful number, since it uses less digits than its factorization.

505157677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396242.

The product of its (nonzero) digits is 257250, while the sum is 43.

The square root of 505157677 is about 22475.7130476432. The cubic root of 505157677 is about 796.4202961459.

The spelling of 505157677 in words is "five hundred five million, one hundred fifty-seven thousand, six hundred seventy-seven".