5220451 has 4 divisors (see below), whose sum is σ = 5283432. Its totient is φ = 5157472.

The previous prime is 5220427. The next prime is 5220463. The reversal of 5220451 is 1540225.

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 5220451 - 2⁷ = 5220323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5220491) 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, 31366 + ... + 31531.

It is an arithmetic number, because the mean of its divisors is an integer number (1320858).

Almost surely, 2^5220451 is an apocalyptic number.

5220451 is a deficient number, since it is larger than the sum of its proper divisors (62981).

5220451 is an equidigital number, since it uses as much as digits as its factorization.

5220451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62980.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 5220451 is about 2284.8306282961. The cubic root of 5220451 is about 173.4746451999.

Adding to 5220451 its reverse (1540225), we get a palindrome (6760676).

It can be divided in two parts, 5220 and 451, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 5220451 in words is "five million, two hundred twenty thousand, four hundred fifty-one".