5211420 has 24 divisors (see below), whose sum is σ = 14592144. Its totient is φ = 1389696.

The previous prime is 5211391. The next prime is 5211421. The reversal of 5211420 is 241125.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 5211420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5211421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43369 + ... + 43488.

It is an arithmetic number, because the mean of its divisors is an integer number (608006).

Almost surely, 2^5211420 is an apocalyptic number.

It is an amenable number.

5211420 is an abundant number, since it is smaller than the sum of its proper divisors (9380724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5211420 is a wasteful number, since it uses less digits than its factorization.

5211420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86869 (or 86867 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 5211420 is about 2282.8534775583. The cubic root of 5211420 is about 173.3745546275.

Adding to 5211420 its reverse (241125), we get a palindrome (5452545).

The spelling of 5211420 in words is "five million, two hundred eleven thousand, four hundred twenty".