51650579 has 2 divisors, whose sum is σ = 51650580. Its totient is φ = 51650578.

The previous prime is 51650563. The next prime is 51650623. The reversal of 51650579 is 97505615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51650579 - 2⁴ = 51650563 is a prime.

It is a super-2 number, since 2×51650579² = 5335564622070482, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51653579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25825289 + 25825290.

It is an arithmetic number, because the mean of its divisors is an integer number (25825290).

Almost surely, 2^51650579 is an apocalyptic number.

51650579 is a deficient number, since it is larger than the sum of its proper divisors (1).

51650579 is an equidigital number, since it uses as much as digits as its factorization.

51650579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47250, while the sum is 38.

The square root of 51650579 is about 7186.8337256402. The cubic root of 51650579 is about 372.4131989993.

The spelling of 51650579 in words is "fifty-one million, six hundred fifty thousand, five hundred seventy-nine".