71507650 has 24 divisors (see below), whose sum is σ = 134884224. Its totient is φ = 28198800.

The previous prime is 71507617. The next prime is 71507663. The reversal of 71507650 is 5670517.

It is a super-2 number, since 2×71507650² = 10226688017045000, which contains 22 as substring.

It is a zygodrome in base 3.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6522 + ... + 13621.

It is an arithmetic number, because the mean of its divisors is an integer number (5620176).

Almost surely, 2^71507650 is an apocalyptic number.

71507650 is a deficient number, since it is larger than the sum of its proper divisors (63376574).

71507650 is a wasteful number, since it uses less digits than its factorization.

71507650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20226 (or 20221 counting only the distinct ones).

The product of its (nonzero) digits is 7350, while the sum is 31.

The square root of 71507650 is about 8456.2196045278. The cubic root of 71507650 is about 415.0663270385.

The spelling of 71507650 in words is "seventy-one million, five hundred seven thousand, six hundred fifty".