2175157755 has 12 divisors (see below), whose sum is σ = 3770273520. Its totient is φ = 1160084112.

The previous prime is 2175157723. The next prime is 2175157757. The reversal of 2175157755 is 5577515712.

2175157755 is a `hidden beast` number, since 2 + 1 + 75 + 1 + 577 + 5 + 5 = 666.

2175157755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2175157755 - 2⁵ = 2175157723 is a prime.

It is a super-2 number, since 2×2175157755² = 9462622518273280050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 48336839 = 2175157755 / (2 + 1 + 7 + 5 + 1 + 5 + 7 + 7 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 2175157755.

It is not an unprimeable number, because it can be changed into a prime (2175157757) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24168375 + ... + 24168464.

It is an arithmetic number, because the mean of its divisors is an integer number (314189460).

Almost surely, 2^2175157755 is an apocalyptic number.

2175157755 is a deficient number, since it is larger than the sum of its proper divisors (1595115765).

2175157755 is a wasteful number, since it uses less digits than its factorization.

2175157755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48336850 (or 48336847 counting only the distinct ones).

The product of its digits is 428750, while the sum is 45.

The square root of 2175157755 is about 46638.5865459064. The cubic root of 2175157755 is about 1295.6775085652.

The spelling of 2175157755 in words is "two billion, one hundred seventy-five million, one hundred fifty-seven thousand, seven hundred fifty-five".