55454022240 has 96 divisors (see below), whose sum is σ = 174852802656. Its totient is φ = 14773125120.

The previous prime is 55454022223. The next prime is 55454022251. The reversal of 55454022240 is 4222045455.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

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, 433504 + ... + 546656.

It is an arithmetic number, because the mean of its divisors is an integer number (1821383361).

Almost surely, 2^55454022240 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 55454022240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87426401328).

55454022240 is an abundant number, since it is smaller than the sum of its proper divisors (119398780416).

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

55454022240 is a wasteful number, since it uses less digits than its factorization.

55454022240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114192 (or 114184 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 33.

Adding to 55454022240 its reverse (4222045455), we get a palindrome (59676067695).

The spelling of 55454022240 in words is "fifty-five billion, four hundred fifty-four million, twenty-two thousand, two hundred forty".