71550650 has 12 divisors (see below), whose sum is σ = 133084302. Its totient is φ = 28620240.

The previous prime is 71550641. The next prime is 71550653. The reversal of 71550650 is 5605517.

It can be written as a sum of positive squares in 3 ways, for example, as 32024281 + 39526369 = 5659^2 + 6287^2 .

It is not an unprimeable number, because it can be changed into a prime (71550653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 715457 + ... + 715556.

Almost surely, 2^71550650 is an apocalyptic number.

71550650 is a deficient number, since it is larger than the sum of its proper divisors (61533652).

71550650 is a wasteful number, since it uses less digits than its factorization.

71550650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431025 (or 1431020 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 71550650 is about 8458.7617297096. The cubic root of 71550650 is about 415.1495082354.

The spelling of 71550650 in words is "seventy-one million, five hundred fifty thousand, six hundred fifty".