65493210 has 16 divisors (see below), whose sum is σ = 157183776. Its totient is φ = 17464848.

The previous prime is 65493203. The next prime is 65493217. The reversal of 65493210 is 1239456.

It is an interprime number because it is at equal distance from previous prime (65493203) and next prime (65493217).

It is a super-2 number, since 2×65493210² = 8578721112208200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2183107 = 65493210 / (6 + 5 + 4 + 9 + 3 + 2 + 1 + 0).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65493217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1091524 + ... + 1091583.

It is an arithmetic number, because the mean of its divisors is an integer number (9823986).

Almost surely, 2^65493210 is an apocalyptic number.

65493210 is an abundant number, since it is smaller than the sum of its proper divisors (91690566).

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

65493210 is a wasteful number, since it uses less digits than its factorization.

65493210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183117.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 65493210 is about 8092.7875296464. The cubic root of 65493210 is about 403.0869694308.

It can be divided in two parts, 65493 and 210, that added together give a triangular number (65703 = T₃₆₂).

The spelling of 65493210 in words is "sixty-five million, four hundred ninety-three thousand, two hundred ten".