52640041545 has 48 divisors (see below), whose sum is σ = 112298764032. Its totient is φ = 22212938880.

The previous prime is 52640041541. The next prime is 52640041589. The reversal of 52640041545 is 54514004625.

52640041545 is a `hidden beast` number, since 5 + 2 + 640 + 0 + 4 + 1 + 5 + 4 + 5 = 666.

It is not a de Polignac number, because 52640041545 - 2² = 52640041541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52640041541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6423261 + ... + 6431450.

It is an arithmetic number, because the mean of its divisors is an integer number (2339557584).

Almost surely, 2^52640041545 is an apocalyptic number.

It is an amenable number.

52640041545 is an abundant number, since it is smaller than the sum of its proper divisors (59658722487).

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

52640041545 is a wasteful number, since it uses less digits than its factorization.

52640041545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12854742 (or 12854739 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 52640041545 in words is "fifty-two billion, six hundred forty million, forty-one thousand, five hundred forty-five".