53778190 has 16 divisors (see below), whose sum is σ = 97968528. Its totient is φ = 21251776.

The previous prime is 53778187. The next prime is 53778247. The reversal of 53778190 is 9187735.

53778190 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×53778190² = 5784187439352200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 31567 + ... + 33226.

It is an arithmetic number, because the mean of its divisors is an integer number (6123033).

Almost surely, 2^53778190 is an apocalyptic number.

53778190 is a deficient number, since it is larger than the sum of its proper divisors (44190338).

53778190 is a wasteful number, since it uses less digits than its factorization.

53778190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64883.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 53778190 is about 7333.3614393401. The cubic root of 53778190 is about 377.4580805169.

The spelling of 53778190 in words is "fifty-three million, seven hundred seventy-eight thousand, one hundred ninety".