52505015544 has 24 divisors (see below), whose sum is σ = 142201083960. Its totient is φ = 17501671824.

The previous prime is 52505015543. The next prime is 52505015557. The reversal of 52505015544 is 44551050525.

52505015544 is a `hidden beast` number, since 5 + 2 + 50 + 50 + 1 + 554 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 52505015499 and 52505015508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52505015543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 364618092 + ... + 364618235.

It is an arithmetic number, because the mean of its divisors is an integer number (5925045165).

Almost surely, 2^52505015544 is an apocalyptic number.

It is an amenable number.

52505015544 is an abundant number, since it is smaller than the sum of its proper divisors (89696068416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52505015544 is a wasteful number, since it uses less digits than its factorization.

52505015544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729236339 (or 729236332 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 36.

The spelling of 52505015544 in words is "fifty-two billion, five hundred five million, fifteen thousand, five hundred forty-four".