523055323413521 has 8 divisors (see below), whose sum is σ = 524364972273384. Its totient is φ = 521745700780800.

The previous prime is 523055323413509. The next prime is 523055323413523. The reversal of 523055323413521 is 125314323550325.

It can be written as a sum of positive squares in 4 ways, for example, as 233353273569025 + 289702049844496 = 15275905^2 + 17020636^2 .

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 523055323413521 - 2²⁶ = 523055256304657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523055323413523) 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, 33688571 + ... + 46701503.

It is an arithmetic number, because the mean of its divisors is an integer number (65545621534173).

Almost surely, 2^{523055323413521} is an apocalyptic number.

It is an amenable number.

523055323413521 is a deficient number, since it is larger than the sum of its proper divisors (1309648859863).

523055323413521 is a wasteful number, since it uses less digits than its factorization.

523055323413521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13113571.

The product of its (nonzero) digits is 1620000, while the sum is 44.

Adding to 523055323413521 its reverse (125314323550325), we get a palindrome (648369646963846).

The spelling of 523055323413521 in words is "five hundred twenty-three trillion, fifty-five billion, three hundred twenty-three million, four hundred thirteen thousand, five hundred twenty-one".