71533225 has 12 divisors (see below), whose sum is σ = 88831120. Its totient is φ = 57142800.

The previous prime is 71533223. The next prime is 71533277. The reversal of 71533225 is 52233517.

It is not a de Polignac number, because 71533225 - 2¹ = 71533223 is a prime.

It is a super-3 number, since 3×71533225³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71533193 and 71533202.

It is not an unprimeable number, because it can be changed into a prime (71533223) 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, 19810 + ... + 23140.

Almost surely, 2^71533225 is an apocalyptic number.

It is an amenable number.

71533225 is a deficient number, since it is larger than the sum of its proper divisors (17297895).

71533225 is a wasteful number, since it uses less digits than its factorization.

71533225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4200 (or 4195 counting only the distinct ones).

The product of its digits is 6300, while the sum is 28.

The square root of 71533225 is about 8457.7316698983. The cubic root of 71533225 is about 415.1158045234.

The spelling of 71533225 in words is "seventy-one million, five hundred thirty-three thousand, two hundred twenty-five".