52404236545 has 16 divisors (see below), whose sum is σ = 64143550800. Its totient is φ = 41089305600.

The previous prime is 52404236519. The next prime is 52404236581. The reversal of 52404236545 is 54563240425.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 3203673201 + 49200563344 = 56601^2 + 221812^2 .

It is not a de Polignac number, because 52404236545 - 2⁹ = 52404236033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52404236498 and 52404236507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220020 + ... + 391429.

It is an arithmetic number, because the mean of its divisors is an integer number (4008971925).

Almost surely, 2^52404236545 is an apocalyptic number.

It is an amenable number.

52404236545 is a deficient number, since it is larger than the sum of its proper divisors (11739314255).

52404236545 is a wasteful number, since it uses less digits than its factorization.

52404236545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611796.

The product of its (nonzero) digits is 576000, while the sum is 40.

The spelling of 52404236545 in words is "fifty-two billion, four hundred four million, two hundred thirty-six thousand, five hundred forty-five".