53005623660 has 72 divisors (see below), whose sum is σ = 175400433936. Its totient is φ = 12849847680.

The previous prime is 53005623647. The next prime is 53005623677. The reversal of 53005623660 is 6632650035.

53005623660 is a `hidden beast` number, since 5 + 3 + 0 + 0 + 562 + 36 + 60 = 666.

It is a super-2 number, since 2×53005623660² (a number of 22 digits) contains 22 as substring.

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

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 23 ways as a sum of consecutive naturals, for example, 13383279 + ... + 13387238.

It is an arithmetic number, because the mean of its divisors is an integer number (2436117138).

Almost surely, 2^53005623660 is an apocalyptic number.

It is an amenable number.

53005623660 is an abundant number, since it is smaller than the sum of its proper divisors (122394810276).

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

53005623660 is a wasteful number, since it uses less digits than its factorization.

53005623660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26770543 (or 26770538 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

The spelling of 53005623660 in words is "fifty-three billion, five million, six hundred twenty-three thousand, six hundred sixty".