65140250 has 32 divisors (see below), whose sum is σ = 139366656. Its totient is φ = 22333200.

The previous prime is 65140249. The next prime is 65140289. The reversal of 65140250 is 5204156.

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, 16862 + ... + 20361.

It is an arithmetic number, because the mean of its divisors is an integer number (4355208).

Almost surely, 2^65140250 is an apocalyptic number.

65140250 is an abundant number, since it is smaller than the sum of its proper divisors (74226406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65140250 is a wasteful number, since it uses less digits than its factorization.

65140250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37247 (or 37237 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 65140250 is about 8070.9509972493. The cubic root of 65140250 is about 402.3615510866.

The spelling of 65140250 in words is "sixty-five million, one hundred forty thousand, two hundred fifty".