71275650625 has 45 divisors (see below), whose sum is σ = 91104558303. Its totient is φ = 55744380000.

The previous prime is 71275650617. The next prime is 71275650643. The reversal of 71275650625 is 52605657217.

The square root of 71275650625 is 266975.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 69025476529 + 2250174096 = 262727^2 + 47436^2 .

It is not a de Polignac number, because 71275650625 - 2³ = 71275650617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 393788035 + ... + 393788215.

Almost surely, 2^71275650625 is an apocalyptic number.

71275650625 is the 266975-th square number.

71275650625 is the 133488-th centered octagonal number.

It is an amenable number.

71275650625 is a deficient number, since it is larger than the sum of its proper divisors (19828907678).

71275650625 is an frugal number, since it uses more digits than its factorization.

71275650625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 882000, while the sum is 46.

The spelling of 71275650625 in words is "seventy-one billion, two hundred seventy-five million, six hundred fifty thousand, six hundred twenty-five".