51223357 has 2 divisors, whose sum is σ = 51223358. Its totient is φ = 51223356.

The previous prime is 51223343. The next prime is 51223379. The reversal of 51223357 is 75332215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27154521 + 24068836 = 5211^2 + 4906^2 .

It is a cyclic number.

It is not a de Polignac number, because 51223357 - 2¹⁹ = 50699069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51229357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25611678 + 25611679.

It is an arithmetic number, because the mean of its divisors is an integer number (25611679).

Almost surely, 2^51223357 is an apocalyptic number.

It is an amenable number.

51223357 is a deficient number, since it is larger than the sum of its proper divisors (1).

51223357 is an equidigital number, since it uses as much as digits as its factorization.

51223357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6300, while the sum is 28.

The square root of 51223357 is about 7157.0494618942. The cubic root of 51223357 is about 371.3835635165.

The spelling of 51223357 in words is "fifty-one million, two hundred twenty-three thousand, three hundred fifty-seven".