71366425 has 24 divisors (see below), whose sum is σ = 100915416. Its totient is φ = 49597440.

The previous prime is 71366423. The next prime is 71366437. The reversal of 71366425 is 52466317.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 20043529 + 51322896 = 4477^2 + 7164^2 .

It is not a de Polignac number, because 71366425 - 2¹ = 71366423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71366423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 934 + ... + 11983.

It is an arithmetic number, because the mean of its divisors is an integer number (4204809).

Almost surely, 2^71366425 is an apocalyptic number.

It is an amenable number.

71366425 is a deficient number, since it is larger than the sum of its proper divisors (29548991).

71366425 is a wasteful number, since it uses less digits than its factorization.

71366425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12957 (or 12952 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 71366425 is about 8447.8651149270. The cubic root of 71366425 is about 414.7929000055.

The spelling of 71366425 in words is "seventy-one million, three hundred sixty-six thousand, four hundred twenty-five".