65135650 has 24 divisors (see below), whose sum is σ = 125063424. Its totient is φ = 25213200.

The previous prime is 65135639. The next prime is 65135657. The reversal of 65135650 is 5653156.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (65135657) 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, 19462 + ... + 22561.

It is an arithmetic number, because the mean of its divisors is an integer number (5210976).

Almost surely, 2^65135650 is an apocalyptic number.

65135650 is a deficient number, since it is larger than the sum of its proper divisors (59927774).

65135650 is a wasteful number, since it uses less digits than its factorization.

65135650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42066 (or 42061 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 65135650 is about 8070.6660196046. Note that the first 3 decimals coincide. The cubic root of 65135650 is about 402.3520796937.

The spelling of 65135650 in words is "sixty-five million, one hundred thirty-five thousand, six hundred fifty".