6449525 has 6 divisors (see below), whose sum is σ = 7997442. Its totient is φ = 5159600.

The previous prime is 6449491. The next prime is 6449537. The reversal of 6449525 is 5259446.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 908209 + 5541316 = 953^2 + 2354^2 .

It is not a de Polignac number, because 6449525 - 2¹⁶ = 6383989 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128966 + ... + 129015.

It is an arithmetic number, because the mean of its divisors is an integer number (1332907).

Almost surely, 2^6449525 is an apocalyptic number.

It is an amenable number.

6449525 is a deficient number, since it is larger than the sum of its proper divisors (1547917).

6449525 is a wasteful number, since it uses less digits than its factorization.

6449525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257991 (or 257986 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 6449525 is about 2539.5915025846. The cubic root of 6449525 is about 186.1412289237.

The spelling of 6449525 in words is "six million, four hundred forty-nine thousand, five hundred twenty-five".