71226550 has 12 divisors (see below), whose sum is σ = 132481476. Its totient is φ = 28490600.

The previous prime is 71226527. The next prime is 71226559. The reversal of 71226550 is 5562217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71226559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 712216 + ... + 712315.

It is an arithmetic number, because the mean of its divisors is an integer number (11040123).

Almost surely, 2^71226550 is an apocalyptic number.

71226550 is a deficient number, since it is larger than the sum of its proper divisors (61254926).

71226550 is a wasteful number, since it uses less digits than its factorization.

71226550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424543 (or 1424538 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 71226550 is about 8439.5823356372. The cubic root of 71226550 is about 414.5217309265.

Adding to 71226550 its reverse (5562217), we get a palindrome (76788767).

The spelling of 71226550 in words is "seventy-one million, two hundred twenty-six thousand, five hundred fifty".