65221150 has 24 divisors (see below), whose sum is σ = 123128280. Its totient is φ = 25697760.

The previous prime is 65221133. The next prime is 65221157. The reversal of 65221150 is 5112256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65221157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6385 + ... + 13084.

It is an arithmetic number, because the mean of its divisors is an integer number (5130345).

Almost surely, 2^65221150 is an apocalyptic number.

65221150 is a deficient number, since it is larger than the sum of its proper divisors (57907130).

65221150 is a wasteful number, since it uses less digits than its factorization.

65221150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19548 (or 19543 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 65221150 is about 8075.9612430967. The cubic root of 65221150 is about 402.5280512322.

The spelling of 65221150 in words is "sixty-five million, two hundred twenty-one thousand, one hundred fifty".