53626778 has 16 divisors (see below), whose sum is σ = 86274720. Its totient is φ = 24921936.

The previous prime is 53626753. The next prime is 53626799. The reversal of 53626778 is 87762635.

53626778 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 2×53626778² = 5751662637322568, which contains 22 as substring.

It is a Curzon 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, 11300 + ... + 15327.

It is an arithmetic number, because the mean of its divisors is an integer number (5392170).

Almost surely, 2^53626778 is an apocalyptic number.

53626778 is a deficient number, since it is larger than the sum of its proper divisors (32647942).

53626778 is a wasteful number, since it uses less digits than its factorization.

53626778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26701.

The product of its digits is 423360, while the sum is 44.

The square root of 53626778 is about 7323.0306567705. The cubic root of 53626778 is about 377.1035042868.

The spelling of 53626778 in words is "fifty-three million, six hundred twenty-six thousand, seven hundred seventy-eight".