445505007 has 4 divisors (see below), whose sum is σ = 594006680. Its totient is φ = 297003336.

The previous prime is 445505003. The next prime is 445505023. The reversal of 445505007 is 700505544.

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

It is not a de Polignac number, because 445505007 - 2² = 445505003 is a prime.

It is a super-2 number, since 2×445505007² = 396949422524140098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445505003) 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, 74250832 + ... + 74250837.

It is an arithmetic number, because the mean of its divisors is an integer number (148501670).

Almost surely, 2^445505007 is an apocalyptic number.

445505007 is a deficient number, since it is larger than the sum of its proper divisors (148501673).

445505007 is a wasteful number, since it uses less digits than its factorization.

445505007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148501672.

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 445505007 is about 21106.9895295374. The cubic root of 445505007 is about 763.7493667018.

The spelling of 445505007 in words is "four hundred forty-five million, five hundred five thousand, seven".