65545250 has 32 divisors (see below), whose sum is σ = 129168000. Its totient is φ = 24836400.

The previous prime is 65545243. The next prime is 65545261. The reversal of 65545250 is 5254556.

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, 2150 + ... + 11649.

It is an arithmetic number, because the mean of its divisors is an integer number (4036500).

Almost surely, 2^65545250 is an apocalyptic number.

65545250 is a deficient number, since it is larger than the sum of its proper divisors (63622750).

65545250 is a wasteful number, since it uses less digits than its factorization.

65545250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13835 (or 13825 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 65545250 is about 8096.0020998021. The cubic root of 65545250 is about 403.1937036119.

The spelling of 65545250 in words is "sixty-five million, five hundred forty-five thousand, two hundred fifty".