523404461 has 16 divisors (see below), whose sum is σ = 541594800. Its totient is φ = 505612800.

The previous prime is 523404437. The next prime is 523404463. The reversal of 523404461 is 164404325.

It can be written as a sum of positive squares in 8 ways, for example, as 150528361 + 372876100 = 12269^2 + 19310^2 .

It is a cyclic number.

It is not a de Polignac number, because 523404461 - 2¹⁰ = 523403437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523404463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1243031 + ... + 1243451.

It is an arithmetic number, because the mean of its divisors is an integer number (33849675).

Almost surely, 2^523404461 is an apocalyptic number.

It is an amenable number.

523404461 is a deficient number, since it is larger than the sum of its proper divisors (18190339).

523404461 is a wasteful number, since it uses less digits than its factorization.

523404461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 523404461 is about 22878.0344653993. The cubic root of 523404461 is about 805.8962593300.

Adding to 523404461 its reverse (164404325), we get a palindrome (687808786).

The spelling of 523404461 in words is "five hundred twenty-three million, four hundred four thousand, four hundred sixty-one".