51448207 has 2 divisors, whose sum is σ = 51448208. Its totient is φ = 51448206.

The previous prime is 51448183. The next prime is 51448211. The reversal of 51448207 is 70284415.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51448207 - 2¹¹ = 51446159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51448237) 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, 25724103 + 25724104.

It is an arithmetic number, because the mean of its divisors is an integer number (25724104).

Almost surely, 2^51448207 is an apocalyptic number.

51448207 is a deficient number, since it is larger than the sum of its proper divisors (1).

51448207 is an equidigital number, since it uses as much as digits as its factorization.

51448207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 51448207 is about 7172.7405501663. The cubic root of 51448207 is about 371.9261786494.

The spelling of 51448207 in words is "fifty-one million, four hundred forty-eight thousand, two hundred seven".