505432541 has 4 divisors (see below), whose sum is σ = 507639900. Its totient is φ = 503225184.

The previous prime is 505432537. The next prime is 505432549. The reversal of 505432541 is 145234505.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 476767225 + 28665316 = 21835^2 + 5354^2 .

It is a cyclic number.

It is not a de Polignac number, because 505432541 - 2² = 505432537 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505432549) 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, 1103336 + ... + 1103793.

It is an arithmetic number, because the mean of its divisors is an integer number (126909975).

Almost surely, 2^505432541 is an apocalyptic number.

It is an amenable number.

505432541 is a deficient number, since it is larger than the sum of its proper divisors (2207359).

505432541 is a wasteful number, since it uses less digits than its factorization.

505432541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2207358.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 505432541 is about 22481.8269053029. The cubic root of 505432541 is about 796.5647181001.

The spelling of 505432541 in words is "five hundred five million, four hundred thirty-two thousand, five hundred forty-one".