5645775437 has 4 divisors (see below), whose sum is σ = 5645947776. Its totient is φ = 5645603100.

The previous prime is 5645775433. The next prime is 5645775451. The reversal of 5645775437 is 7345775465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5645775437 - 2² = 5645775433 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 (5645775433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20189 + ... + 108162.

It is an arithmetic number, because the mean of its divisors is an integer number (1411486944).

Almost surely, 2^5645775437 is an apocalyptic number.

It is an amenable number.

5645775437 is a deficient number, since it is larger than the sum of its proper divisors (172339).

5645775437 is a wasteful number, since it uses less digits than its factorization.

5645775437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172338.

The product of its digits is 12348000, while the sum is 53.

The square root of 5645775437 is about 75138.3752619126. The cubic root of 5645775437 is about 1780.6334736632.

The spelling of 5645775437 in words is "five billion, six hundred forty-five million, seven hundred seventy-five thousand, four hundred thirty-seven".