52640645505 has 32 divisors (see below), whose sum is σ = 96471648000. Its totient is φ = 24010678272.

The previous prime is 52640645489. The next prime is 52640645507. The reversal of 52640645505 is 50554604625.

It is a happy number.

It is not a de Polignac number, because 52640645505 - 2⁴ = 52640645489 is a prime.

It is a super-3 number, since 3×52640645505³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (52640645507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 511140 + ... + 605429.

It is an arithmetic number, because the mean of its divisors is an integer number (3014739000).

Almost surely, 2^52640645505 is an apocalyptic number.

It is an amenable number.

52640645505 is a deficient number, since it is larger than the sum of its proper divisors (43831002495).

52640645505 is a wasteful number, since it uses less digits than its factorization.

52640645505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117033.

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 52640645505 in words is "fifty-two billion, six hundred forty million, six hundred forty-five thousand, five hundred five".