45775 has 6 divisors (see below), whose sum is σ = 56792. Its totient is φ = 36600.

The previous prime is 45767. The next prime is 45779. The reversal of 45775 is 57754.

It is not a de Polignac number, because 45775 - 2³ = 45767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45779) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 891 + ... + 940.

2⁴⁵⁷⁷⁵ is an apocalyptic number.

45775 is a deficient number, since it is larger than the sum of its proper divisors (11017).

45775 is a wasteful number, since it uses less digits than its factorization.

45775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841 (or 1836 counting only the distinct ones).

The product of its digits is 4900, while the sum is 28.

The square root of 45775 is about 213.9509289533. The cubic root of 45775 is about 35.7719639429.

It can be divided in two parts, 45 and 775, that added together give a triangular number (820 = T₄₀).

The spelling of 45775 in words is "forty-five thousand, seven hundred seventy-five".