1655551056 has 40 divisors (see below), whose sum is σ = 4281204160. Its totient is φ = 551287296.

The previous prime is 1655551031. The next prime is 1655551057. The reversal of 1655551056 is 6501555561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1655551057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31341 + ... + 65523.

It is an arithmetic number, because the mean of its divisors is an integer number (107030104).

Almost surely, 2^1655551056 is an apocalyptic number.

1655551056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1655551056 is an abundant number, since it is smaller than the sum of its proper divisors (2625653104).

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

1655551056 is a wasteful number, since it uses less digits than its factorization.

1655551056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35203 (or 35197 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 39.

The square root of 1655551056 is about 40688.4634263817. The cubic root of 1655551056 is about 1182.9894172331.

The spelling of 1655551056 in words is "one billion, six hundred fifty-five million, five hundred fifty-one thousand, fifty-six".