53353778 has 8 divisors (see below), whose sum is σ = 82193772. Its totient is φ = 25955856.

The previous prime is 53353777. The next prime is 53353787. The reversal of 53353778 is 87735335.

It is a happy number.

53353778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 36156169 + 17197609 = 6013^2 + 4147^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (53353777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360425 + ... + 360572.

Almost surely, 2^53353778 is an apocalyptic number.

53353778 is a deficient number, since it is larger than the sum of its proper divisors (28839994).

53353778 is a wasteful number, since it uses less digits than its factorization.

53353778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721036.

The product of its digits is 264600, while the sum is 41.

The square root of 53353778 is about 7304.3670499229. The cubic root of 53353778 is about 376.4625033276.

The spelling of 53353778 in words is "fifty-three million, three hundred fifty-three thousand, seven hundred seventy-eight".