71533025 has 24 divisors (see below), whose sum is σ = 96478200. Its totient is φ = 52392960.

The previous prime is 71533001. The next prime is 71533057. The reversal of 71533025 is 52033517.

It can be written as a sum of positive squares in 12 ways, for example, as 96721 + 71436304 = 311^2 + 8452^2 .

It is not a de Polignac number, because 71533025 - 2¹² = 71528929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71532985 and 71533003.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13451 + ... + 17999.

It is an arithmetic number, because the mean of its divisors is an integer number (4019925).

Almost surely, 2^71533025 is an apocalyptic number.

It is an amenable number.

71533025 is a deficient number, since it is larger than the sum of its proper divisors (24945175).

71533025 is a wasteful number, since it uses less digits than its factorization.

71533025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4613 (or 4608 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 71533025 is about 8457.7198463889. The cubic root of 71533025 is about 415.1154176485.

The spelling of 71533025 in words is "seventy-one million, five hundred thirty-three thousand, twenty-five".