53994778 has 8 divisors (see below), whose sum is σ = 81031860. Its totient is φ = 26984160.

The previous prime is 53994761. The next prime is 53994791. The reversal of 53994778 is 87749935.

It can be written as a sum of positive squares in 2 ways, for example, as 53626329 + 368449 = 7323^2 + 607^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313 + ... + 10396.

Almost surely, 2^53994778 is an apocalyptic number.

53994778 is a deficient number, since it is larger than the sum of its proper divisors (27037082).

53994778 is a wasteful number, since it uses less digits than its factorization.

53994778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13232.

The product of its digits is 1905120, while the sum is 52.

The square root of 53994778 is about 7348.1139076637. The cubic root of 53994778 is about 377.9641306725.

The spelling of 53994778 in words is "fifty-three million, nine hundred ninety-four thousand, seven hundred seventy-eight".