53461221 has 16 divisors (see below), whose sum is σ = 77952000. Its totient is φ = 32321520.

The previous prime is 53461201. The next prime is 53461237. The reversal of 53461221 is 12216435.

It is not a de Polignac number, because 53461221 - 2⁶ = 53461157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53461191 and 53461200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53461201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13530 + ... + 17028.

It is an arithmetic number, because the mean of its divisors is an integer number (4872000).

Almost surely, 2^53461221 is an apocalyptic number.

It is an amenable number.

53461221 is a deficient number, since it is larger than the sum of its proper divisors (24490779).

53461221 is a wasteful number, since it uses less digits than its factorization.

53461221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3976.

The product of its digits is 1440, while the sum is 24.

The square root of 53461221 is about 7311.7180607570. The cubic root of 53461221 is about 376.7150386446.

Adding to 53461221 its reverse (12216435), we get a palindrome (65677656).

The spelling of 53461221 in words is "fifty-three million, four hundred sixty-one thousand, two hundred twenty-one".