445000051 has 4 divisors (see below), whose sum is σ = 446144400. Its totient is φ = 443855704.

The previous prime is 445000033. The next prime is 445000069. The reversal of 445000051 is 150000544.

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

It is an interprime number because it is at equal distance from previous prime (445000033) and next prime (445000069).

It is a cyclic number.

It is not a de Polignac number, because 445000051 - 2⁷ = 444999923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 444999992 and 445000028.

It is not an unprimeable number, because it can be changed into a prime (445000001) 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, 571591 + ... + 572368.

It is an arithmetic number, because the mean of its divisors is an integer number (111536100).

Almost surely, 2^445000051 is an apocalyptic number.

445000051 is a deficient number, since it is larger than the sum of its proper divisors (1144349).

445000051 is a wasteful number, since it uses less digits than its factorization.

445000051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144348.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 445000051 is about 21095.0243185449. The cubic root of 445000051 is about 763.4607013151.

Adding to 445000051 its reverse (150000544), we get a palindrome (595000595).

The spelling of 445000051 in words is "four hundred forty-five million, fifty-one", and thus it is an aban number.