53021461 has 4 divisors (see below), whose sum is σ = 53568172. Its totient is φ = 52474752.

The previous prime is 53021447. The next prime is 53021467. The reversal of 53021461 is 16412035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16412035 = 5 ⋅3282407.

It can be written as a sum of positive squares in 2 ways, for example, as 17380561 + 35640900 = 4169^2 + 5970^2 .

It is a cyclic number.

It is not a de Polignac number, because 53021461 - 2¹³ = 53013269 is a prime.

It is a super-2 number, since 2×53021461² = 5622550653149042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53021467) 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 3 ways as a sum of consecutive naturals, for example, 273210 + ... + 273403.

It is an arithmetic number, because the mean of its divisors is an integer number (13392043).

Almost surely, 2^53021461 is an apocalyptic number.

It is an amenable number.

53021461 is a deficient number, since it is larger than the sum of its proper divisors (546711).

53021461 is an equidigital number, since it uses as much as digits as its factorization.

53021461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546710.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 53021461 is about 7281.5836876328. The cubic root of 53021461 is about 375.6792689883.

Adding to 53021461 its reverse (16412035), we get a palindrome (69433496).

The spelling of 53021461 in words is "fifty-three million, twenty-one thousand, four hundred sixty-one".