45072775 has 12 divisors (see below), whose sum is σ = 60971544. Its totient is φ = 32780000.

The previous prime is 45072773. The next prime is 45072779. The reversal of 45072775 is 57727054.

It is not a de Polignac number, because 45072775 - 2¹ = 45072773 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 (45072773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81676 + ... + 82225.

It is an arithmetic number, because the mean of its divisors is an integer number (5080962).

Almost surely, 2^45072775 is an apocalyptic number.

45072775 is a deficient number, since it is larger than the sum of its proper divisors (15898769).

45072775 is a wasteful number, since it uses less digits than its factorization.

45072775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163922 (or 163917 counting only the distinct ones).

The product of its (nonzero) digits is 68600, while the sum is 37.

The square root of 45072775 is about 6713.6260694203. The cubic root of 45072775 is about 355.8809700746.

The spelling of 45072775 in words is "forty-five million, seventy-two thousand, seven hundred seventy-five".