51341009 has 2 divisors, whose sum is σ = 51341010. Its totient is φ = 51341008.

The previous prime is 51340997. The next prime is 51341029. The reversal of 51341009 is 90014315.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28569025 + 22771984 = 5345^2 + 4772^2 .

It is a cyclic number.

It is not a de Polignac number, because 51341009 - 2¹⁶ = 51275473 is a prime.

It is not a weakly prime, because it can be changed into another prime (51341029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25670504 + 25670505.

It is an arithmetic number, because the mean of its divisors is an integer number (25670505).

Almost surely, 2^51341009 is an apocalyptic number.

It is an amenable number.

51341009 is a deficient number, since it is larger than the sum of its proper divisors (1).

51341009 is an equidigital number, since it uses as much as digits as its factorization.

51341009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 51341009 is about 7165.2640565439. The cubic root of 51341009 is about 371.6676826595.

The spelling of 51341009 in words is "fifty-one million, three hundred forty-one thousand, nine".