505021497 has 8 divisors (see below), whose sum is σ = 675292800. Its totient is φ = 335715600.

The previous prime is 505021453. The next prime is 505021507. The reversal of 505021497 is 794120505.

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

It is not a de Polignac number, because 505021497 - 2¹⁹ = 504497209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505021997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240129 + ... + 242222.

It is an arithmetic number, because the mean of its divisors is an integer number (84411600).

Almost surely, 2^505021497 is an apocalyptic number.

It is an amenable number.

505021497 is a deficient number, since it is larger than the sum of its proper divisors (170271303).

505021497 is a wasteful number, since it uses less digits than its factorization.

505021497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482703.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 505021497 is about 22472.6833511265. The cubic root of 505021497 is about 796.3487235999.

The spelling of 505021497 in words is "five hundred five million, twenty-one thousand, four hundred ninety-seven".