448209477525 has 48 divisors (see below), whose sum is σ = 766770298560. Its totient is φ = 230748672000.

The previous prime is 448209477517. The next prime is 448209477563. The reversal of 448209477525 is 525774902844.

It is not a de Polignac number, because 448209477525 - 2³ = 448209477517 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10420714 + ... + 10463636.

It is an arithmetic number, because the mean of its divisors is an integer number (15974381220).

Almost surely, 2^448209477525 is an apocalyptic number.

It is an amenable number.

448209477525 is a deficient number, since it is larger than the sum of its proper divisors (318560821035).

448209477525 is a wasteful number, since it uses less digits than its factorization.

448209477525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47766 (or 47761 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 57.

The spelling of 448209477525 in words is "four hundred forty-eight billion, two hundred nine million, four hundred seventy-seven thousand, five hundred twenty-five".