445140025 has 24 divisors (see below), whose sum is σ = 605345184. Its totient is φ = 322022400.

The previous prime is 445140023. The next prime is 445140029. The reversal of 445140025 is 520041544.

It is a happy number.

It is not a de Polignac number, because 445140025 - 2¹ = 445140023 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 not an unprimeable number, because it can be changed into a prime (445140023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48882 + ... + 57268.

It is an arithmetic number, because the mean of its divisors is an integer number (25222716).

Almost surely, 2^445140025 is an apocalyptic number.

It is an amenable number.

445140025 is a deficient number, since it is larger than the sum of its proper divisors (160205159).

445140025 is a wasteful number, since it uses less digits than its factorization.

445140025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8601 (or 8596 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 445140025 is about 21098.3417594843. The cubic root of 445140025 is about 763.5407413400.

Adding to 445140025 its reverse (520041544), we get a palindrome (965181569).

The spelling of 445140025 in words is "four hundred forty-five million, one hundred forty thousand, twenty-five".