53278766 has 16 divisors (see below), whose sum is σ = 80777088. Its totient is φ = 26355000.

The previous prime is 53278751. The next prime is 53278807. The reversal of 53278766 is 66787235.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105671 + ... + 106173.

It is an arithmetic number, because the mean of its divisors is an integer number (5048568).

Almost surely, 2^53278766 is an apocalyptic number.

53278766 is a deficient number, since it is larger than the sum of its proper divisors (27498322).

53278766 is a wasteful number, since it uses less digits than its factorization.

53278766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967.

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

The square root of 53278766 is about 7299.2305073891. The cubic root of 53278766 is about 376.2859931792.

The spelling of 53278766 in words is "fifty-three million, two hundred seventy-eight thousand, seven hundred sixty-six".