5206651 has 4 divisors (see below), whose sum is σ = 5258304. Its totient is φ = 5155000.

The previous prime is 5206639. The next prime is 5206657. The reversal of 5206651 is 1566025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5206651 - 2¹¹ = 5204603 is a prime.

It is an Ulam number.

It is a Duffinian number.

5206651 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5206657) 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, 25675 + ... + 25876.

It is an arithmetic number, because the mean of its divisors is an integer number (1314576).

Almost surely, 2^5206651 is an apocalyptic number.

5206651 is a deficient number, since it is larger than the sum of its proper divisors (51653).

5206651 is a wasteful number, since it uses less digits than its factorization.

5206651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51652.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 5206651 is about 2281.8087124034. The cubic root of 5206651 is about 173.3216531413.

It can be divided in two parts, 5206 and 651, that multiplied together give a triangular number (3389106 = T₂₆₀₃).

The spelling of 5206651 in words is "five million, two hundred six thousand, six hundred fifty-one".