51266257741 has 2 divisors, whose sum is σ = 51266257742. Its totient is φ = 51266257740.

The previous prime is 51266257673. The next prime is 51266257751. The reversal of 51266257741 is 14775266215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42681494025 + 8584763716 = 206595^2 + 92654^2 .

It is a cyclic number.

It is not a de Polignac number, because 51266257741 - 2⁷ = 51266257613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51266257691 and 51266257700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51266257751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25633128870 + 25633128871.

It is an arithmetic number, because the mean of its divisors is an integer number (25633128871).

Almost surely, 2^51266257741 is an apocalyptic number.

It is an amenable number.

51266257741 is a deficient number, since it is larger than the sum of its proper divisors (1).

51266257741 is an equidigital number, since it uses as much as digits as its factorization.

51266257741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 705600, while the sum is 46.

The spelling of 51266257741 in words is "fifty-one billion, two hundred sixty-six million, two hundred fifty-seven thousand, seven hundred forty-one".