5251020223 has 4 divisors (see below), whose sum is σ = 5251325040. Its totient is φ = 5250715408.

The previous prime is 5251020217. The next prime is 5251020241. The reversal of 5251020223 is 3220201525.

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 5251020223 - 2¹³ = 5251012031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5251020194 and 5251020203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5251020283) 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, 124915 + ... + 161572.

It is an arithmetic number, because the mean of its divisors is an integer number (1312831260).

Almost surely, 2^5251020223 is an apocalyptic number.

5251020223 is a deficient number, since it is larger than the sum of its proper divisors (304817).

5251020223 is a wasteful number, since it uses less digits than its factorization.

5251020223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304816.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 5251020223 is about 72463.9235965042. The cubic root of 5251020223 is about 1738.1258968127.

Adding to 5251020223 its reverse (3220201525), we get a palindrome (8471221748).

The spelling of 5251020223 in words is "five billion, two hundred fifty-one million, twenty thousand, two hundred twenty-three".