65012250625 has 135 divisors (see below), whose sum is σ = 99771544917. Its totient is φ = 42223860000.

The previous prime is 65012250607. The next prime is 65012250637. The reversal of 65012250625 is 52605221056.

The square root of 65012250625 is 254975.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5096960449 + 59915290176 = 71393^2 + 244776^2 .

It is not a de Polignac number, because 65012250625 - 2⁷ = 65012250497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 1383239352 + ... + 1383239398.

Almost surely, 2^65012250625 is an apocalyptic number.

65012250625 is the 254975-th square number.

65012250625 is the 127488-th centered octagonal number.

It is an amenable number.

65012250625 is a deficient number, since it is larger than the sum of its proper divisors (34759294292).

65012250625 is an frugal number, since it uses more digits than its factorization.

65012250625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 65012250625 in words is "sixty-five billion, twelve million, two hundred fifty thousand, six hundred twenty-five".