505431541 has 4 divisors (see below), whose sum is σ = 508532512. Its totient is φ = 502330572.

The previous prime is 505431527. The next prime is 505431551. The reversal of 505431541 is 145134505.

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 505431541 - 2⁷ = 505431413 is a prime.

It is a super-2 number, since 2×505431541² = 510922085275269362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505431551) 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, 1550241 + ... + 1550566.

It is an arithmetic number, because the mean of its divisors is an integer number (127133128).

Almost surely, 2^505431541 is an apocalyptic number.

It is an amenable number.

505431541 is a deficient number, since it is larger than the sum of its proper divisors (3100971).

505431541 is a wasteful number, since it uses less digits than its factorization.

505431541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3100970.

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

The square root of 505431541 is about 22481.8046651064. The cubic root of 505431541 is about 796.5641927644.

The spelling of 505431541 in words is "five hundred five million, four hundred thirty-one thousand, five hundred forty-one".