1955560000 has 70 divisors (see below), whose sum is σ = 4849252430. Its totient is φ = 782208000.

The previous prime is 1955559961. The next prime is 1955560049. The reversal of 1955560000 is 655591.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 678498304 + 1277061696 = 26048^2 + 35736^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 15556 + ... + 64444.

Almost surely, 2^1955560000 is an apocalyptic number.

1955560000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1955560000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2424626215).

1955560000 is an abundant number, since it is smaller than the sum of its proper divisors (2893692430).

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

1955560000 is an frugal number, since it uses more digits than its factorization.

1955560000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48921 (or 48896 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 31.

The square root of 1955560000 is about 44221.7141232675. The cubic root of 1955560000 is about 1250.5192509396.

The spelling of 1955560000 in words is "one billion, nine hundred fifty-five million, five hundred sixty thousand".