65040250313 has 4 divisors (see below), whose sum is σ = 65139853188. Its totient is φ = 64940647440.

The previous prime is 65040250283. The next prime is 65040250357. The reversal of 65040250313 is 31305204056.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20298270784 + 44741979529 = 142472^2 + 211523^2 .

It is a cyclic number.

It is not a de Polignac number, because 65040250313 - 2¹² = 65040246217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65040450313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49800458 + ... + 49801763.

It is an arithmetic number, because the mean of its divisors is an integer number (16284963297).

Almost surely, 2^65040250313 is an apocalyptic number.

It is an amenable number.

65040250313 is a deficient number, since it is larger than the sum of its proper divisors (99602875).

65040250313 is an equidigital number, since it uses as much as digits as its factorization.

65040250313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99602874.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 65040250313 its reverse (31305204056), we get a palindrome (96345454369).

The spelling of 65040250313 in words is "sixty-five billion, forty million, two hundred fifty thousand, three hundred thirteen".