53478511 has 2 divisors, whose sum is σ = 53478512. Its totient is φ = 53478510.

The previous prime is 53478499. The next prime is 53478539. The reversal of 53478511 is 11587435.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53478511 - 2¹⁷ = 53347439 is a prime.

It is a super-2 number, since 2×53478511² = 5719902277554242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53478571) 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, 26739255 + 26739256.

It is an arithmetic number, because the mean of its divisors is an integer number (26739256).

Almost surely, 2^53478511 is an apocalyptic number.

53478511 is a deficient number, since it is larger than the sum of its proper divisors (1).

53478511 is an equidigital number, since it uses as much as digits as its factorization.

53478511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 34.

The square root of 53478511 is about 7312.9003138290. The cubic root of 53478511 is about 376.7556456544.

The spelling of 53478511 in words is "fifty-three million, four hundred seventy-eight thousand, five hundred eleven".