52535511440 has 80 divisors (see below), whose sum is σ = 129295742400. Its totient is φ = 19817688576.

The previous prime is 52535511439. The next prime is 52535511443. The reversal of 52535511440 is 4411553525.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 52535511440.

It is not an unprimeable number, because it can be changed into a prime (52535511443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163550 + ... + 363069.

It is an arithmetic number, because the mean of its divisors is an integer number (1616196780).

Almost surely, 2^52535511440 is an apocalyptic number.

It is an amenable number.

52535511440 is an abundant number, since it is smaller than the sum of its proper divisors (76760230960).

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

52535511440 is a wasteful number, since it uses less digits than its factorization.

52535511440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526704 (or 526698 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 52535511440 in words is "fifty-two billion, five hundred thirty-five million, five hundred eleven thousand, four hundred forty".