53778044 has 12 divisors (see below), whose sum is σ = 94638600. Its totient is φ = 26738448.

The previous prime is 53778041. The next prime is 53778047. The reversal of 53778044 is 44087735.

It is an interprime number because it is at equal distance from previous prime (53778041) and next prime (53778047).

It is a junction number, because it is equal to n+sod(n) for n = 53777989 and 53778007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53778041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36839 + ... + 38270.

It is an arithmetic number, because the mean of its divisors is an integer number (7886550).

Almost surely, 2^53778044 is an apocalyptic number.

It is an amenable number.

53778044 is a deficient number, since it is larger than the sum of its proper divisors (40860556).

53778044 is a wasteful number, since it uses less digits than its factorization.

53778044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75292 (or 75290 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 53778044 is about 7333.3514848260. The cubic root of 53778044 is about 377.4577389353.

It can be divided in two parts, 537780 and 44, that added together give a 5-th power (537824 = 14⁵).

The spelling of 53778044 in words is "fifty-three million, seven hundred seventy-eight thousand, forty-four".