45372805 has 4 divisors (see below), whose sum is σ = 54447372. Its totient is φ = 36298240.

The previous prime is 45372799. The next prime is 45372827. The reversal of 45372805 is 50827354.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23833924 + 21538881 = 4882^2 + 4641^2 .

It is not a de Polignac number, because 45372805 - 2¹⁷ = 45241733 is a prime.

It is a Duffinian number.

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, 4537276 + ... + 4537285.

It is an arithmetic number, because the mean of its divisors is an integer number (13611843).

Almost surely, 2^45372805 is an apocalyptic number.

It is an amenable number.

45372805 is a deficient number, since it is larger than the sum of its proper divisors (9074567).

45372805 is an equidigital number, since it uses as much as digits as its factorization.

45372805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9074566.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 45372805 is about 6735.9338625019. The cubic root of 45372805 is about 356.6688730563.

The spelling of 45372805 in words is "forty-five million, three hundred seventy-two thousand, eight hundred five".