51201379 has 2 divisors, whose sum is σ = 51201380. Its totient is φ = 51201378.

The previous prime is 51201373. The next prime is 51201383. The reversal of 51201379 is 97310215.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51201379 is a prime.

It is not a weakly prime, because it can be changed into another prime (51201373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25600689 + 25600690.

It is an arithmetic number, because the mean of its divisors is an integer number (25600690).

Almost surely, 2^51201379 is an apocalyptic number.

51201379 is a deficient number, since it is larger than the sum of its proper divisors (1).

51201379 is an equidigital number, since it uses as much as digits as its factorization.

51201379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 51201379 is about 7155.5138879049. The cubic root of 51201379 is about 371.3304403836.

The spelling of 51201379 in words is "fifty-one million, two hundred one thousand, three hundred seventy-nine".