5263421 has 8 divisors (see below), whose sum is σ = 5594040. Its totient is φ = 4935168.

The previous prime is 5263417. The next prime is 5263429. The reversal of 5263421 is 1243625.

It can be written as a sum of positive squares in 4 ways, for example, as 2937796 + 2325625 = 1714^2 + 1525^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5263421 - 2² = 5263417 is a prime.

It is a d-powerful number, because it can be written as 5⁴ + 2²⁰ + 6³ + 3⁹ + 4² + 2²² + 1 .

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5263429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6575 + ... + 7331.

It is an arithmetic number, because the mean of its divisors is an integer number (699255).

Almost surely, 2^5263421 is an apocalyptic number.

It is an amenable number.

5263421 is a deficient number, since it is larger than the sum of its proper divisors (330619).

5263421 is a wasteful number, since it uses less digits than its factorization.

5263421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183.

The product of its digits is 1440, while the sum is 23.

The square root of 5263421 is about 2294.2146804517. The cubic root of 5263421 is about 173.9493070276.

The spelling of 5263421 in words is "five million, two hundred sixty-three thousand, four hundred twenty-one".