245366785 has 4 divisors (see below), whose sum is σ = 294440148. Its totient is φ = 196293424.

The previous prime is 245366777. The next prime is 245366791. The reversal of 245366785 is 587663542.

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 75742209 + 169624576 = 8703^2 + 13024^2 .

It is a cyclic number.

It is not a de Polignac number, because 245366785 - 2³ = 245366777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24536674 + ... + 24536683.

It is an arithmetic number, because the mean of its divisors is an integer number (73610037).

It is a Proth number, since it is equal to 117 ⋅ 2²¹ + 1 and 117 < 2²¹.

Almost surely, 2^245366785 is an apocalyptic number.

It is an amenable number.

245366785 is a deficient number, since it is larger than the sum of its proper divisors (49073363).

245366785 is an equidigital number, since it uses as much as digits as its factorization.

245366785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49073362.

The product of its digits is 1209600, while the sum is 46.

The square root of 245366785 is about 15664.1879776770. The cubic root of 245366785 is about 626.0445764036.

The spelling of 245366785 in words is "two hundred forty-five million, three hundred sixty-six thousand, seven hundred eighty-five".