43050625645 has 4 divisors (see below), whose sum is σ = 51660750780. Its totient is φ = 34440500512.

The previous prime is 43050625589. The next prime is 43050625661. The reversal of 43050625645 is 54652605034.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54652605034 = 2 ⋅27326302517.

It can be written as a sum of positive squares in 2 ways, for example, as 10009202116 + 33041423529 = 100046^2 + 181773^2 .

It is a cyclic number.

It is not a de Polignac number, because 43050625645 - 2²³ = 43042237037 is a prime.

It is a super-3 number, since 3×43050625645³ (a number of 33 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 43050625598 and 43050625607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4305062560 + ... + 4305062569.

It is an arithmetic number, because the mean of its divisors is an integer number (12915187695).

Almost surely, 2^43050625645 is an apocalyptic number.

It is an amenable number.

43050625645 is a deficient number, since it is larger than the sum of its proper divisors (8610125135).

43050625645 is an equidigital number, since it uses as much as digits as its factorization.

43050625645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8610125134.

The product of its (nonzero) digits is 432000, while the sum is 40.

The spelling of 43050625645 in words is "forty-three billion, fifty million, six hundred twenty-five thousand, six hundred forty-five".