523416361 has 4 divisors (see below), whose sum is σ = 563679172. Its totient is φ = 483153552.

The previous prime is 523416301. The next prime is 523416391. The reversal of 523416361 is 163614325.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 125014761 + 398401600 = 11181^2 + 19960^2 .

It is a cyclic number.

It is not a de Polignac number, because 523416361 - 2¹¹ = 523414313 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 (523416301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20131386 + ... + 20131411.

It is an arithmetic number, because the mean of its divisors is an integer number (140919793).

Almost surely, 2^523416361 is an apocalyptic number.

It is an amenable number.

523416361 is a deficient number, since it is larger than the sum of its proper divisors (40262811).

523416361 is a wasteful number, since it uses less digits than its factorization.

523416361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40262810.

The product of its digits is 12960, while the sum is 31.

The square root of 523416361 is about 22878.2945387107. The cubic root of 523416361 is about 805.9023668393.

The spelling of 523416361 in words is "five hundred twenty-three million, four hundred sixteen thousand, three hundred sixty-one".