745585547 has 4 divisors (see below), whose sum is σ = 852097776. Its totient is φ = 639073320.

The previous prime is 745585501. The next prime is 745585579.

745585547 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 745585547 - 2¹⁰ = 745584523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 745585495 and 745585504.

It is not an unprimeable number, because it can be changed into a prime (735585547) 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, 53256104 + ... + 53256117.

It is an arithmetic number, because the mean of its divisors is an integer number (213024444).

Almost surely, 2^745585547 is an apocalyptic number.

745585547 is a deficient number, since it is larger than the sum of its proper divisors (106512229).

745585547 is a wasteful number, since it uses less digits than its factorization.

745585547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106512228.

The product of its digits is 3920000, while the sum is 50.

The square root of 745585547 is about 27305.4124121940. The cubic root of 745585547 is about 906.7742112344.

The spelling of 745585547 in words is "seven hundred forty-five million, five hundred eighty-five thousand, five hundred forty-seven".