71295550 has 12 divisors (see below), whose sum is σ = 132609816. Its totient is φ = 28518200.

The previous prime is 71295533. The next prime is 71295557. The reversal of 71295550 is 5559217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71295557) 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, 712906 + ... + 713005.

It is an arithmetic number, because the mean of its divisors is an integer number (11050818).

Almost surely, 2^71295550 is an apocalyptic number.

71295550 is a deficient number, since it is larger than the sum of its proper divisors (61314266).

71295550 is a wasteful number, since it uses less digits than its factorization.

71295550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425923 (or 1425918 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 34.

The square root of 71295550 is about 8443.6692261125. The cubic root of 71295550 is about 414.6555423046.

The spelling of 71295550 in words is "seventy-one million, two hundred ninety-five thousand, five hundred fifty".