51451327 has 2 divisors, whose sum is σ = 51451328. Its totient is φ = 51451326.

The previous prime is 51451313. The next prime is 51451369. The reversal of 51451327 is 72315415.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51451327 - 2¹⁹ = 50927039 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 51451295 and 51451304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51451427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25725663 + 25725664.

It is an arithmetic number, because the mean of its divisors is an integer number (25725664).

Almost surely, 2^51451327 is an apocalyptic number.

51451327 is a deficient number, since it is larger than the sum of its proper divisors (1).

51451327 is an equidigital number, since it uses as much as digits as its factorization.

51451327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4200, while the sum is 28.

The square root of 51451327 is about 7172.9580369608. The cubic root of 51451327 is about 371.9336968008.

The spelling of 51451327 in words is "fifty-one million, four hundred fifty-one thousand, three hundred twenty-seven".