51125027 has 2 divisors, whose sum is σ = 51125028. Its totient is φ = 51125026.

The previous prime is 51125023. The next prime is 51125051. The reversal of 51125027 is 72052115.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51125027 - 2² = 51125023 is a prime.

It is a super-2 number, since 2×51125027² = 5227536771501458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51124993 and 51125011.

It is not a weakly prime, because it can be changed into another prime (51125023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25562513 + 25562514.

It is an arithmetic number, because the mean of its divisors is an integer number (25562514).

Almost surely, 2^51125027 is an apocalyptic number.

51125027 is a deficient number, since it is larger than the sum of its proper divisors (1).

51125027 is an equidigital number, since it uses as much as digits as its factorization.

51125027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 51125027 is about 7150.1767111030. The cubic root of 51125027 is about 371.1457713580.

The spelling of 51125027 in words is "fifty-one million, one hundred twenty-five thousand, twenty-seven".