523560421 has 8 divisors (see below), whose sum is σ = 529409024. Its totient is φ = 517739040.

The previous prime is 523560391. The next prime is 523560481. The reversal of 523560421 is 124065325.

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 523560421 - 2¹³ = 523552229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 523560421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523560481) 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, 33166 + ... + 46336.

It is an arithmetic number, because the mean of its divisors is an integer number (66176128).

Almost surely, 2^523560421 is an apocalyptic number.

It is an amenable number.

523560421 is a deficient number, since it is larger than the sum of its proper divisors (5848603).

523560421 is a wasteful number, since it uses less digits than its factorization.

523560421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13611.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 523560421 is about 22881.4427211223. The cubic root of 523560421 is about 805.9762962856.

It can be divided in two parts, 5235 and 60421, that added together give a palindrome (65656).

The spelling of 523560421 in words is "five hundred twenty-three million, five hundred sixty thousand, four hundred twenty-one".