71552525 has 12 divisors (see below), whose sum is σ = 96791424. Its totient is φ = 52038000.

The previous prime is 71552521. The next prime is 71552527. The reversal of 71552525 is 52525517.

It is not a de Polignac number, because 71552525 - 2² = 71552521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71552491 and 71552500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71552521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129821 + ... + 130370.

It is an arithmetic number, because the mean of its divisors is an integer number (8065952).

Almost surely, 2^71552525 is an apocalyptic number.

It is an amenable number.

71552525 is a deficient number, since it is larger than the sum of its proper divisors (25238899).

71552525 is a wasteful number, since it uses less digits than its factorization.

71552525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260212 (or 260207 counting only the distinct ones).

The product of its digits is 17500, while the sum is 32.

The square root of 71552525 is about 8458.8725608086. The cubic root of 71552525 is about 415.1531345641.

The spelling of 71552525 in words is "seventy-one million, five hundred fifty-two thousand, five hundred twenty-five".