51007577 has 2 divisors, whose sum is σ = 51007578. Its totient is φ = 51007576.

The previous prime is 51007559. The next prime is 51007613. The reversal of 51007577 is 77570015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28955161 + 22052416 = 5381^2 + 4696^2 .

It is a cyclic number.

It is not a de Polignac number, because 51007577 - 2⁶ = 51007513 is a prime.

It is a super-2 number, since 2×51007577² = 5203545822821858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51007477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25503788 + 25503789.

It is an arithmetic number, because the mean of its divisors is an integer number (25503789).

Almost surely, 2^51007577 is an apocalyptic number.

It is an amenable number.

51007577 is a deficient number, since it is larger than the sum of its proper divisors (1).

51007577 is an equidigital number, since it uses as much as digits as its factorization.

51007577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8575, while the sum is 32.

The square root of 51007577 is about 7141.9589049504. The cubic root of 51007577 is about 370.8613412279.

The spelling of 51007577 in words is "fifty-one million, seven thousand, five hundred seventy-seven".