65405050 has 24 divisors (see below), whose sum is σ = 121867200. Its totient is φ = 26116080.

The previous prime is 65405047. The next prime is 65405051. The reversal of 65405050 is 5050456.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (65405051) 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, 51321 + ... + 52579.

It is an arithmetic number, because the mean of its divisors is an integer number (5077800).

Almost surely, 2^65405050 is an apocalyptic number.

65405050 is a deficient number, since it is larger than the sum of its proper divisors (56462150).

65405050 is a wasteful number, since it uses less digits than its factorization.

65405050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2310 (or 2305 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 65405050 is about 8087.3388701105. The cubic root of 65405050 is about 402.9060239345.

The spelling of 65405050 in words is "sixty-five million, four hundred five thousand, fifty".