504190081 has 8 divisors (see below), whose sum is σ = 510727464. Its totient is φ = 497683200.

The previous prime is 504190069. The next prime is 504190109. The reversal of 504190081 is 180091405.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 100180081 + 404010000 = 10009^2 + 20100^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 504190081 - 2¹³ = 504181889 is a prime.

It is a super-2 number, since 2×504190081² = 508415275557573122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504190031) 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, 26631 + ... + 41443.

It is an arithmetic number, because the mean of its divisors is an integer number (63840933).

Almost surely, 2^504190081 is an apocalyptic number.

It is an amenable number.

504190081 is a deficient number, since it is larger than the sum of its proper divisors (6537383).

504190081 is a wasteful number, since it uses less digits than its factorization.

504190081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15251.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 504190081 is about 22454.1773619075. The cubic root of 504190081 is about 795.9114743980.

The spelling of 504190081 in words is "five hundred four million, one hundred ninety thousand, eighty-one".