52661515040 has 48 divisors (see below), whose sum is σ = 125002543680. Its totient is φ = 20964760320.

The previous prime is 52661515037. The next prime is 52661515079. The reversal of 52661515040 is 4051516625.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746180 + ... + 813699.

It is an arithmetic number, because the mean of its divisors is an integer number (2604219660).

Almost surely, 2^52661515040 is an apocalyptic number.

It is an amenable number.

52661515040 is an abundant number, since it is smaller than the sum of its proper divisors (72341028640).

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

52661515040 is a wasteful number, since it uses less digits than its factorization.

52661515040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560105 (or 1560097 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 52661515040 in words is "fifty-two billion, six hundred sixty-one million, five hundred fifteen thousand, forty".