53220379 has 2 divisors, whose sum is σ = 53220380. Its totient is φ = 53220378.

The previous prime is 53220373. The next prime is 53220407. The reversal of 53220379 is 97302235.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53220379 - 2³ = 53220371 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53220379.

It is not a weakly prime, because it can be changed into another prime (53220371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26610189 + 26610190.

It is an arithmetic number, because the mean of its divisors is an integer number (26610190).

Almost surely, 2^53220379 is an apocalyptic number.

53220379 is a deficient number, since it is larger than the sum of its proper divisors (1).

53220379 is an equidigital number, since it uses as much as digits as its factorization.

53220379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 53220379 is about 7295.2298798599. The cubic root of 53220379 is about 376.1484884885.

The spelling of 53220379 in words is "fifty-three million, two hundred twenty thousand, three hundred seventy-nine".