53172461 has 2 divisors, whose sum is σ = 53172462. Its totient is φ = 53172460.

The previous prime is 53172433. The next prime is 53172491. The reversal of 53172461 is 16427135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52562500 + 609961 = 7250^2 + 781^2 .

It is a cyclic number.

It is not a de Polignac number, because 53172461 - 2¹⁸ = 52910317 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53172491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26586230 + 26586231.

It is an arithmetic number, because the mean of its divisors is an integer number (26586231).

Almost surely, 2^53172461 is an apocalyptic number.

It is an amenable number.

53172461 is a deficient number, since it is larger than the sum of its proper divisors (1).

53172461 is an equidigital number, since it uses as much as digits as its factorization.

53172461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 53172461 is about 7291.9449394520. The cubic root of 53172461 is about 376.0355637291.

Adding to 53172461 its reverse (16427135), we get a palindrome (69599596).

The spelling of 53172461 in words is "fifty-three million, one hundred seventy-two thousand, four hundred sixty-one".