5102785 has 4 divisors (see below), whose sum is σ = 6123348. Its totient is φ = 4082224.

The previous prime is 5102777. The next prime is 5102789. The reversal of 5102785 is 5872015.

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 3139984 + 1962801 = 1772^2 + 1401^2 .

It is a cyclic number.

It is not a de Polignac number, because 5102785 - 2³ = 5102777 is a prime.

It is a Duffinian number.

5102785 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5102789) 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, 510274 + ... + 510283.

It is an arithmetic number, because the mean of its divisors is an integer number (1530837).

Almost surely, 2^5102785 is an apocalyptic number.

It is an amenable number.

5102785 is a deficient number, since it is larger than the sum of its proper divisors (1020563).

5102785 is a wasteful number, since it uses less digits than its factorization.

5102785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020562.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 5102785 is about 2258.9344833350. The cubic root of 5102785 is about 172.1613885425.

The spelling of 5102785 in words is "five million, one hundred two thousand, seven hundred eighty-five".