52131461 has 2 divisors, whose sum is σ = 52131462. Its totient is φ = 52131460.

The previous prime is 52131451. The next prime is 52131479. The reversal of 52131461 is 16413125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50908225 + 1223236 = 7135^2 + 1106^2 .

It is a cyclic number.

It is not a de Polignac number, because 52131461 - 2²² = 47937157 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52131451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26065730 + 26065731.

It is an arithmetic number, because the mean of its divisors is an integer number (26065731).

Almost surely, 2^52131461 is an apocalyptic number.

It is an amenable number.

52131461 is a deficient number, since it is larger than the sum of its proper divisors (1).

52131461 is an equidigital number, since it uses as much as digits as its factorization.

52131461 is an evil number, because the sum of its binary digits is even.

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

The square root of 52131461 is about 7220.2119774976. The cubic root of 52131461 is about 373.5653892291.

Adding to 52131461 its reverse (16413125), we get a palindrome (68544586).

The spelling of 52131461 in words is "fifty-two million, one hundred thirty-one thousand, four hundred sixty-one".