523452505 has 8 divisors (see below), whose sum is σ = 645120072. Its totient is φ = 407443968.

The previous prime is 523452481. The next prime is 523452509. The reversal of 523452505 is 505254325.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 238146624 + 285305881 = 15432^2 + 16891^2 .

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 523452505 - 2¹¹ = 523450457 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523452509) 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, 1414552 + ... + 1414921.

It is an arithmetic number, because the mean of its divisors is an integer number (80640009).

Almost surely, 2^523452505 is an apocalyptic number.

It is an amenable number.

523452505 is a deficient number, since it is larger than the sum of its proper divisors (121667567).

523452505 is a wasteful number, since it uses less digits than its factorization.

523452505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2829515.

The product of its (nonzero) digits is 30000, while the sum is 31.

The square root of 523452505 is about 22879.0844440943. The cubic root of 523452505 is about 805.9209166764.

The spelling of 523452505 in words is "five hundred twenty-three million, four hundred fifty-two thousand, five hundred five".