51623041 has 2 divisors, whose sum is σ = 51623042. Its totient is φ = 51623040.

The previous prime is 51623021. The next prime is 51623051. The reversal of 51623041 is 14032615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34574400 + 17048641 = 5880^2 + 4129^2 .

It is a cyclic number.

It is not a de Polignac number, because 51623041 - 2⁵ = 51623009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51623021) 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 as a sum of consecutive naturals, namely, 25811520 + 25811521.

It is an arithmetic number, because the mean of its divisors is an integer number (25811521).

Almost surely, 2^51623041 is an apocalyptic number.

51623041 is the 3841-st centered heptagonal number.

It is an amenable number.

51623041 is a deficient number, since it is larger than the sum of its proper divisors (1).

51623041 is an equidigital number, since it uses as much as digits as its factorization.

51623041 is an odious number, because the sum of its binary digits is odd.

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

The square root of 51623041 is about 7184.9176056514. The cubic root of 51623041 is about 372.3470020142.

Adding to 51623041 its reverse (14032615), we get a palindrome (65655656).

The spelling of 51623041 in words is "fifty-one million, six hundred twenty-three thousand, forty-one".