53211461 has 4 divisors (see below), whose sum is σ = 53234412. Its totient is φ = 53188512.

The previous prime is 53211449. The next prime is 53211493. The reversal of 53211461 is 16411235.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51696100 + 1515361 = 7190^2 + 1231^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53211461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53210461) 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, 7550 + ... + 12783.

It is an arithmetic number, because the mean of its divisors is an integer number (13308603).

Almost surely, 2^53211461 is an apocalyptic number.

It is an amenable number.

53211461 is a deficient number, since it is larger than the sum of its proper divisors (22951).

53211461 is a wasteful number, since it uses less digits than its factorization.

53211461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22950.

The product of its digits is 720, while the sum is 23.

The square root of 53211461 is about 7294.6186329376. The cubic root of 53211461 is about 376.1274772414.

Adding to 53211461 its reverse (16411235), we get a palindrome (69622696).

The spelling of 53211461 in words is "fifty-three million, two hundred eleven thousand, four hundred sixty-one".