55632244520 has 64 divisors (see below), whose sum is σ = 130899162240. Its totient is φ = 21239046400.

The previous prime is 55632244489. The next prime is 55632244621. The reversal of 55632244520 is 2544223655.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358535 + ... + 489705.

It is an arithmetic number, because the mean of its divisors is an integer number (2045299410).

Almost surely, 2^55632244520 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 55632244520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65449581120).

55632244520 is an abundant number, since it is smaller than the sum of its proper divisors (75266917720).

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

55632244520 is a wasteful number, since it uses less digits than its factorization.

55632244520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131666 (or 131662 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 38.

The spelling of 55632244520 in words is "fifty-five billion, six hundred thirty-two million, two hundred forty-four thousand, five hundred twenty".