245786516 has 6 divisors (see below), whose sum is σ = 430126410. Its totient is φ = 122893256.

The previous prime is 245786509. The next prime is 245786521. The reversal of 245786516 is 615687542.

245786516 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 241802500 + 3984016 = 15550^2 + 1996^2 .

It is a super-2 number, since 2×245786516² = 120822022894836512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30723311 + ... + 30723318.

It is an arithmetic number, because the mean of its divisors is an integer number (71687735).

Almost surely, 2^245786516 is an apocalyptic number.

It is an amenable number.

245786516 is a deficient number, since it is larger than the sum of its proper divisors (184339894).

245786516 is a wasteful number, since it uses less digits than its factorization.

245786516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61446633 (or 61446631 counting only the distinct ones).

The product of its digits is 403200, while the sum is 44.

The square root of 245786516 is about 15677.5800428510. The cubic root of 245786516 is about 626.4013492574.

The spelling of 245786516 in words is "two hundred forty-five million, seven hundred eighty-six thousand, five hundred sixteen".