51354379 has 2 divisors, whose sum is σ = 51354380. Its totient is φ = 51354378.

The previous prime is 51354353. The next prime is 51354431. The reversal of 51354379 is 97345315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51354379 - 2²¹ = 49257227 is a prime.

It is not a weakly prime, because it can be changed into another prime (51354179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25677189 + 25677190.

It is an arithmetic number, because the mean of its divisors is an integer number (25677190).

Almost surely, 2^51354379 is an apocalyptic number.

51354379 is a deficient number, since it is larger than the sum of its proper divisors (1).

51354379 is an equidigital number, since it uses as much as digits as its factorization.

51354379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 37.

The square root of 51354379 is about 7166.1969691043. The cubic root of 51354379 is about 371.6999425476.

The spelling of 51354379 in words is "fifty-one million, three hundred fifty-four thousand, three hundred seventy-nine".