5156785 has 4 divisors (see below), whose sum is σ = 6188148. Its totient is φ = 4125424.

The previous prime is 5156783. The next prime is 5156803. The reversal of 5156785 is 5876515.

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 3508129 + 1648656 = 1873^2 + 1284^2 .

It is a cyclic number.

It is not a de Polignac number, because 5156785 - 2¹ = 5156783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5156783) 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, 515674 + ... + 515683.

It is an arithmetic number, because the mean of its divisors is an integer number (1547037).

Almost surely, 2^5156785 is an apocalyptic number.

It is an amenable number.

5156785 is a deficient number, since it is larger than the sum of its proper divisors (1031363).

5156785 is a wasteful number, since it uses less digits than its factorization.

5156785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031362.

The product of its digits is 42000, while the sum is 37.

The square root of 5156785 is about 2270.8555656404. The cubic root of 5156785 is about 172.7665556167.

The spelling of 5156785 in words is "five million, one hundred fifty-six thousand, seven hundred eighty-five".