51110287 has 2 divisors, whose sum is σ = 51110288. Its totient is φ = 51110286.

The previous prime is 51110249. The next prime is 51110299. The reversal of 51110287 is 78201115.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51110287 is a prime.

It is a super-2 number, since 2×51110287² = 5224522874444738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51110987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25555143 + 25555144.

It is an arithmetic number, because the mean of its divisors is an integer number (25555144).

Almost surely, 2^51110287 is an apocalyptic number.

51110287 is a deficient number, since it is larger than the sum of its proper divisors (1).

51110287 is an equidigital number, since it uses as much as digits as its factorization.

51110287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 25.

The square root of 51110287 is about 7149.1458930420. The cubic root of 51110287 is about 371.1100992366.

The spelling of 51110287 in words is "fifty-one million, one hundred ten thousand, two hundred eighty-seven".