65125250 has 32 divisors (see below), whose sum is σ = 122434416. Its totient is φ = 25939200.

The previous prime is 65125237. The next prime is 65125267. The reversal of 65125250 is 5252156.

It can be written as a sum of positive squares in 8 ways, for example, as 2699449 + 62425801 = 1643^2 + 7901^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83864 + ... + 84636.

Almost surely, 2^65125250 is an apocalyptic number.

65125250 is a deficient number, since it is larger than the sum of its proper divisors (57309166).

65125250 is a wasteful number, since it uses less digits than its factorization.

65125250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127 (or 1117 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 65125250 is about 8070.0216852249. The cubic root of 65125250 is about 402.3306644659.

The spelling of 65125250 in words is "sixty-five million, one hundred twenty-five thousand, two hundred fifty".