55722387360 has 192 divisors, whose sum is σ = 180415952640. Its totient is φ = 14450810880.

The previous prime is 55722387359. The next prime is 55722387361. The reversal of 55722387360 is 6378322755.

It is an interprime number because it is at equal distance from previous prime (55722387359) and next prime (55722387361).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (55722387361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2595229 + ... + 2616611.

It is an arithmetic number, because the mean of its divisors is an integer number (939666420).

Almost surely, 2^55722387360 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 55722387360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90207976320).

55722387360 is an abundant number, since it is smaller than the sum of its proper divisors (124693565280).

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

55722387360 is a wasteful number, since it uses less digits than its factorization.

55722387360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21551 (or 21543 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 48.

It can be divided in two parts, 5572 and 2387360, that added together give a palindrome (2392932).

The spelling of 55722387360 in words is "fifty-five billion, seven hundred twenty-two million, three hundred eighty-seven thousand, three hundred sixty".