65273530 has 32 divisors (see below), whose sum is σ = 134724096. Its totient is φ = 22305024.

The previous prime is 65273521. The next prime is 65273539. The reversal of 65273530 is 3537256.

It is an interprime number because it is at equal distance from previous prime (65273521) and next prime (65273539).

It is a junction number, because it is equal to n+sod(n) for n = 65273492 and 65273501.

It is not an unprimeable number, because it can be changed into a prime (65273539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22207 + ... + 24973.

It is an arithmetic number, because the mean of its divisors is an integer number (4210128).

Almost surely, 2^65273530 is an apocalyptic number.

65273530 is an abundant number, since it is smaller than the sum of its proper divisors (69450566).

65273530 is a wasteful number, since it uses less digits than its factorization.

65273530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3118.

The product of its (nonzero) digits is 18900, while the sum is 31.

The square root of 65273530 is about 8079.2035498556. The cubic root of 65273530 is about 402.6357809970.

The spelling of 65273530 in words is "sixty-five million, two hundred seventy-three thousand, five hundred thirty".