71449525 has 12 divisors (see below), whose sum is σ = 101254432. Its totient is φ = 48993840.

The previous prime is 71449507. The next prime is 71449549. The reversal of 71449525 is 52594417.

It is not a de Polignac number, because 71449525 - 2⁷ = 71449397 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203967 + ... + 204316.

Almost surely, 2^71449525 is an apocalyptic number.

It is an amenable number.

71449525 is a deficient number, since it is larger than the sum of its proper divisors (29804907).

71449525 is a wasteful number, since it uses less digits than its factorization.

71449525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408300 (or 408295 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 71449525 is about 8452.7820863903. The cubic root of 71449525 is about 414.9538343188.

The spelling of 71449525 in words is "seventy-one million, four hundred forty-nine thousand, five hundred twenty-five".