445525 has 12 divisors (see below), whose sum is σ = 562464. Its totient is φ = 350000.

The previous prime is 445507. The next prime is 445537. The reversal of 445525 is 525544.

It is not a de Polignac number, because 445525 - 2¹⁷ = 314453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 445525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1650 + ... + 1900.

It is an arithmetic number, because the mean of its divisors is an integer number (46872).

2⁴⁴⁵⁵²⁵ is an apocalyptic number.

It is an amenable number.

445525 is a deficient number, since it is larger than the sum of its proper divisors (116939).

445525 is a wasteful number, since it uses less digits than its factorization.

445525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 327 counting only the distinct ones).

The product of its digits is 4000, while the sum is 25.

The square root of 445525 is about 667.4765913498. The cubic root of 445525 is about 76.3760791499.

The spelling of 445525 in words is "four hundred forty-five thousand, five hundred twenty-five".