505531672 has 8 divisors (see below), whose sum is σ = 947871900. Its totient is φ = 252765832.

The previous prime is 505531657. The next prime is 505531687. The reversal of 505531672 is 276135505.

It is an interprime number because it is at equal distance from previous prime (505531657) and next prime (505531687).

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 31595722 + ... + 31595737.

Almost surely, 2^505531672 is an apocalyptic number.

It is an amenable number.

505531672 is a deficient number, since it is larger than the sum of its proper divisors (442340228).

505531672 is a wasteful number, since it uses less digits than its factorization.

505531672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63191465 (or 63191461 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 505531672 is about 22484.0314890368. The cubic root of 505531672 is about 796.6167917128.

It can be divided in two parts, 50553 and 1672, that added together give a palindrome (52225).

The spelling of 505531672 in words is "five hundred five million, five hundred thirty-one thousand, six hundred seventy-two".