53851979 has 2 divisors, whose sum is σ = 53851980. Its totient is φ = 53851978.

The previous prime is 53851969. The next prime is 53851981. The reversal of 53851979 is 97915835.

53851979 is nontrivially palindromic in base 8.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53851979 is a prime.

Together with 53851981, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53851939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26925989 + 26925990.

It is an arithmetic number, because the mean of its divisors is an integer number (26925990).

Almost surely, 2^53851979 is an apocalyptic number.

53851979 is a deficient number, since it is larger than the sum of its proper divisors (1).

53851979 is an equidigital number, since it uses as much as digits as its factorization.

53851979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 340200, while the sum is 47.

The square root of 53851979 is about 7338.3907636484. The cubic root of 53851979 is about 377.6306382355.

The spelling of 53851979 in words is "fifty-three million, eight hundred fifty-one thousand, nine hundred seventy-nine".