51032207 has 2 divisors, whose sum is σ = 51032208. Its totient is φ = 51032206.

The previous prime is 51032171. The next prime is 51032221. The reversal of 51032207 is 70223015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51032207 - 2⁶ = 51032143 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51032237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25516103 + 25516104.

It is an arithmetic number, because the mean of its divisors is an integer number (25516104).

Almost surely, 2^51032207 is an apocalyptic number.

51032207 is a deficient number, since it is larger than the sum of its proper divisors (1).

51032207 is an equidigital number, since it uses as much as digits as its factorization.

51032207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 51032207 is about 7143.6830136842. The cubic root of 51032207 is about 370.9210241583.

The spelling of 51032207 in words is "fifty-one million, thirty-two thousand, two hundred seven".