1798155056 has 20 divisors (see below), whose sum is σ = 3484721904. Its totient is φ = 898872000.

The previous prime is 1798155001. The next prime is 1798155067. The reversal of 1798155056 is 6505518971.

It is a self number, because there is not a number n which added to its sum of digits gives 1798155056.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79406 + ... + 99506.

Almost surely, 2^1798155056 is an apocalyptic number.

1798155056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1798155056 is a deficient number, since it is larger than the sum of its proper divisors (1686566848).

1798155056 is a wasteful number, since it uses less digits than its factorization.

1798155056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25700 (or 25694 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 47.

The square root of 1798155056 is about 42404.6584233383. The cubic root of 1798155056 is about 1216.0246525184.

It can be divided in two parts, 17981 and 55056, that added together give a palindrome (73037).

The spelling of 1798155056 in words is "one billion, seven hundred ninety-eight million, one hundred fifty-five thousand, fifty-six".