445525201213 has 4 divisors (see below), whose sum is σ = 455886252448. Its totient is φ = 435164149980.

The previous prime is 445525201207. The next prime is 445525201241. The reversal of 445525201213 is 312102525544.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 445525201213 - 2¹⁷ = 445525070141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445525201613) 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, 5180525553 + ... + 5180525638.

It is an arithmetic number, because the mean of its divisors is an integer number (113971563112).

Almost surely, 2^445525201213 is an apocalyptic number.

445525201213 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

445525201213 is a deficient number, since it is larger than the sum of its proper divisors (10361051235).

445525201213 is a wasteful number, since it uses less digits than its factorization.

445525201213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10361051234.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 445525201213 its reverse (312102525544), we get a palindrome (757627726757).

The spelling of 445525201213 in words is "four hundred forty-five billion, five hundred twenty-five million, two hundred one thousand, two hundred thirteen".