5420207651 has 4 divisors (see below), whose sum is σ = 5420427600. Its totient is φ = 5419987704.

The previous prime is 5420207647. The next prime is 5420207687. The reversal of 5420207651 is 1567020245.

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 5420207651 - 2² = 5420207647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5420237651) 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, 67556 + ... + 124113.

It is an arithmetic number, because the mean of its divisors is an integer number (1355106900).

Almost surely, 2^5420207651 is an apocalyptic number.

5420207651 is a deficient number, since it is larger than the sum of its proper divisors (219949).

5420207651 is a wasteful number, since it uses less digits than its factorization.

5420207651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219948.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 5420207651 is about 73622.0595406024. The cubic root of 5420207651 is about 1756.5963458119.

Adding to 5420207651 its reverse (1567020245), we get a palindrome (6987227896).

The spelling of 5420207651 in words is "five billion, four hundred twenty million, two hundred seven thousand, six hundred fifty-one".