55606515072 has 64 divisors (see below), whose sum is σ = 155478763200. Its totient is φ = 17559949824.

The previous prime is 55606515071. The next prime is 55606515089. The reversal of 55606515072 is 27051560655.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55606515071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3803458 + ... + 3818049.

It is an arithmetic number, because the mean of its divisors is an integer number (2429355675).

Almost surely, 2^55606515072 is an apocalyptic number.

It is an amenable number.

55606515072 is an abundant number, since it is smaller than the sum of its proper divisors (99872248128).

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

55606515072 is a wasteful number, since it uses less digits than its factorization.

55606515072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7621543 (or 7621531 counting only the distinct ones).

The product of its (nonzero) digits is 315000, while the sum is 42.

The spelling of 55606515072 in words is "fifty-five billion, six hundred six million, five hundred fifteen thousand, seventy-two".