55654543020 has 96 divisors (see below), whose sum is σ = 162899154432. Its totient is φ = 14170528768.

The previous prime is 55654543019. The next prime is 55654543037. The reversal of 55654543020 is 2034545655.

It is a self number, because there is not a number n which added to its sum of digits gives 55654543020.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 741124 + ... + 812756.

It is an arithmetic number, because the mean of its divisors is an integer number (1696866192).

Almost surely, 2^55654543020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55654543020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81449577216).

55654543020 is an abundant number, since it is smaller than the sum of its proper divisors (107244611412).

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

55654543020 is a wasteful number, since it uses less digits than its factorization.

55654543020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72231 (or 72229 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 39.

The spelling of 55654543020 in words is "fifty-five billion, six hundred fifty-four million, five hundred forty-three thousand, twenty".