51201407 has 2 divisors, whose sum is σ = 51201408. Its totient is φ = 51201406.

The previous prime is 51201389. The next prime is 51201419. The reversal of 51201407 is 70410215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51201407 - 2¹⁸ = 50939263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51201107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25600703 + 25600704.

It is an arithmetic number, because the mean of its divisors is an integer number (25600704).

Almost surely, 2^51201407 is an apocalyptic number.

51201407 is a deficient number, since it is larger than the sum of its proper divisors (1).

51201407 is an equidigital number, since it uses as much as digits as its factorization.

51201407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 51201407 is about 7155.5158444378. The cubic root of 51201407 is about 371.3305080722.

The spelling of 51201407 in words is "fifty-one million, two hundred one thousand, four hundred seven".