55790440002 has 96 divisors (see below), whose sum is σ = 134499605760. Its totient is φ = 16570548960.

The previous prime is 55790439989. The next prime is 55790440007. The reversal of 55790440002 is 20004409755.

It is a super-2 number, since 2×55790440002² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55790440007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4046773 + ... + 4060535.

It is an arithmetic number, because the mean of its divisors is an integer number (1401037560).

Almost surely, 2^55790440002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55790440002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67249802880).

55790440002 is an abundant number, since it is smaller than the sum of its proper divisors (78709165758).

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

55790440002 is a wasteful number, since it uses less digits than its factorization.

55790440002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14188 (or 14185 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

Adding to 55790440002 its reverse (20004409755), we get a palindrome (75794849757).

The spelling of 55790440002 in words is "fifty-five billion, seven hundred ninety million, four hundred forty thousand, two".