785252065 has 16 divisors (see below), whose sum is σ = 1018474128. Its totient is φ = 577771776.

The previous prime is 785252051. The next prime is 785252071. The reversal of 785252065 is 560252587.

It can be written as a sum of positive squares in 8 ways, for example, as 72522256 + 712729809 = 8516^2 + 26697^2 .

It is a cyclic number.

It is not a de Polignac number, because 785252065 - 2¹³ = 785243873 is a prime.

It is a Duffinian number.

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, 3802 + ... + 39811.

It is an arithmetic number, because the mean of its divisors is an integer number (63654633).

Almost surely, 2^785252065 is an apocalyptic number.

It is an amenable number.

785252065 is a deficient number, since it is larger than the sum of its proper divisors (233222063).

785252065 is a wasteful number, since it uses less digits than its factorization.

785252065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43908.

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 785252065 is about 28022.3493840185. The cubic root of 785252065 is about 922.5778617849.

The spelling of 785252065 in words is "seven hundred eighty-five million, two hundred fifty-two thousand, sixty-five".