505404545 has 8 divisors (see below), whose sum is σ = 608437440. Its totient is φ = 403022320.

The previous prime is 505404491. The next prime is 505404569. The reversal of 505404545 is 545404505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 505404545 - 2⁶ = 505404481 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160955 + ... + 164064.

It is an arithmetic number, because the mean of its divisors is an integer number (76054680).

Almost surely, 2^505404545 is an apocalyptic number.

It is an amenable number.

505404545 is a deficient number, since it is larger than the sum of its proper divisors (103032895).

505404545 is a wasteful number, since it uses less digits than its factorization.

505404545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325335.

The product of its (nonzero) digits is 40000, while the sum is 32.

The square root of 505404545 is about 22481.2042604483. The cubic root of 505404545 is about 796.5500105405.

The spelling of 505404545 in words is "five hundred five million, four hundred four thousand, five hundred forty-five".