71822825 has 12 divisors (see below), whose sum is σ = 89880780. Its totient is φ = 56928960.

The previous prime is 71822801. The next prime is 71822833. The reversal of 71822825 is 52822817.

It can be written as a sum of positive squares in 6 ways, for example, as 724201 + 71098624 = 851^2 + 8432^2 .

It is not a de Polignac number, because 71822825 - 2⁶ = 71822761 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10454 + ... + 15903.

It is an arithmetic number, because the mean of its divisors is an integer number (7490065).

Almost surely, 2^71822825 is an apocalyptic number.

It is an amenable number.

71822825 is a deficient number, since it is larger than the sum of its proper divisors (18057955).

71822825 is a wasteful number, since it uses less digits than its factorization.

71822825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26476 (or 26471 counting only the distinct ones).

The product of its digits is 17920, while the sum is 35.

The square root of 71822825 is about 8474.8348066496. The cubic root of 71822825 is about 415.6752446465.

The spelling of 71822825 in words is "seventy-one million, eight hundred twenty-two thousand, eight hundred twenty-five".