2755861560 has 96 divisors (see below), whose sum is σ = 9245508480. Its totient is φ = 711187200.

The previous prime is 2755861523. The next prime is 2755861567. The reversal of 2755861560 is 651685572.

2755861560 is a `hidden beast` number, since 2 + 7 + 5 + 5 + 86 + 1 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2755861567) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112311 + ... + 134630.

It is an arithmetic number, because the mean of its divisors is an integer number (96307380).

Almost surely, 2^2755861560 is an apocalyptic number.

2755861560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2755861560 is an abundant number, since it is smaller than the sum of its proper divisors (6489646920).

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

2755861560 is a wasteful number, since it uses less digits than its factorization.

2755861560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246989 (or 246982 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 45.

The square root of 2755861560 is about 52496.3004410787. The cubic root of 2755861560 is about 1402.0143723645.

The spelling of 2755861560 in words is "two billion, seven hundred fifty-five million, eight hundred sixty-one thousand, five hundred sixty".