523541402404 has 24 divisors (see below), whose sum is σ = 933631385400. Its totient is φ = 256791135744.

The previous prime is 523541402383. The next prime is 523541402441. The reversal of 523541402404 is 404204145325.

It can be written as a sum of positive squares in 4 ways, for example, as 127950720804 + 395590681600 = 357702^2 + 628960^2 .

It is a super-2 number, since 2×523541402404² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 523541402404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1175722 + ... + 1558654.

It is an arithmetic number, because the mean of its divisors is an integer number (38901307725).

Almost surely, 2^523541402404 is an apocalyptic number.

It is an amenable number.

523541402404 is a deficient number, since it is larger than the sum of its proper divisors (410089982996).

523541402404 is a wasteful number, since it uses less digits than its factorization.

523541402404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389439 (or 389437 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 523541402404 its reverse (404204145325), we get a palindrome (927745547729).

The spelling of 523541402404 in words is "five hundred twenty-three billion, five hundred forty-one million, four hundred two thousand, four hundred four".