7211253 has 8 divisors (see below), whose sum is σ = 10988608. Its totient is φ = 4120704.

The previous prime is 7211249. The next prime is 7211261. The reversal of 7211253 is 3521127.

7211253 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 7211253 - 2² = 7211249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 343393 = 7211253 / (7 + 2 + 1 + 1 + 2 + 5 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7211273) 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, 171676 + ... + 171717.

It is an arithmetic number, because the mean of its divisors is an integer number (1373576).

Almost surely, 2^7211253 is an apocalyptic number.

It is an amenable number.

7211253 is a deficient number, since it is larger than the sum of its proper divisors (3777355).

7211253 is a wasteful number, since it uses less digits than its factorization.

7211253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343403.

The product of its digits is 420, while the sum is 21.

The square root of 7211253 is about 2685.3776270759. The cubic root of 7211253 is about 193.1984231875.

It can be divided in two parts, 72 and 11253, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 7211253 in words is "seven million, two hundred eleven thousand, two hundred fifty-three".