445053513 has 4 divisors (see below), whose sum is σ = 593404688. Its totient is φ = 296702340.

The previous prime is 445053509. The next prime is 445053547. The reversal of 445053513 is 315350544.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 445053513 - 2² = 445053509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445053503) 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, 74175583 + ... + 74175588.

It is an arithmetic number, because the mean of its divisors is an integer number (148351172).

Almost surely, 2^445053513 is an apocalyptic number.

It is an amenable number.

445053513 is a deficient number, since it is larger than the sum of its proper divisors (148351175).

445053513 is a wasteful number, since it uses less digits than its factorization.

445053513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148351174.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 445053513 is about 21096.2914513428. The cubic root of 445053513 is about 763.4912739720.

The spelling of 445053513 in words is "four hundred forty-five million, fifty-three thousand, five hundred thirteen".