51764773 has 2 divisors, whose sum is σ = 51764774. Its totient is φ = 51764772.

The previous prime is 51764753. The next prime is 51764777. The reversal of 51764773 is 37746715.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41383489 + 10381284 = 6433^2 + 3222^2 .

It is a cyclic number.

It is not a de Polignac number, because 51764773 - 2⁹ = 51764261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51764777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25882386 + 25882387.

It is an arithmetic number, because the mean of its divisors is an integer number (25882387).

Almost surely, 2^51764773 is an apocalyptic number.

It is an amenable number.

51764773 is a deficient number, since it is larger than the sum of its proper divisors (1).

51764773 is an equidigital number, since it uses as much as digits as its factorization.

51764773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 123480, while the sum is 40.

The square root of 51764773 is about 7194.7740061798. The cubic root of 51764773 is about 372.6874524600.

The spelling of 51764773 in words is "fifty-one million, seven hundred sixty-four thousand, seven hundred seventy-three".