745544755 has 4 divisors (see below), whose sum is σ = 894653712. Its totient is φ = 596435800.

The previous prime is 745544729. The next prime is 745544771. The reversal of 745544755 is 557445547.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 557445547 = 9049 ⋅61603.

It is not a de Polignac number, because 745544755 - 2¹³ = 745536563 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74554471 + ... + 74554480.

It is an arithmetic number, because the mean of its divisors is an integer number (223663428).

Almost surely, 2^745544755 is an apocalyptic number.

745544755 is a deficient number, since it is larger than the sum of its proper divisors (149108957).

745544755 is a wasteful number, since it uses less digits than its factorization.

745544755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149108956.

The product of its digits is 1960000, while the sum is 46.

The square root of 745544755 is about 27304.6654438394. The cubic root of 745544755 is about 906.7576739824.

The spelling of 745544755 in words is "seven hundred forty-five million, five hundred forty-four thousand, seven hundred fifty-five".