53178312 has 128 divisors (see below), whose sum is σ = 157852800. Its totient is φ = 14796800.

The previous prime is 53178259. The next prime is 53178371. The reversal of 53178312 is 21387135.

Its product of digits (5040) is a multiple of the sum of its prime factors (112).

It is a self number, because there is not a number n which added to its sum of digits gives 53178312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1297012 + ... + 1297052.

It is an arithmetic number, because the mean of its divisors is an integer number (1233225).

Almost surely, 2^53178312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53178312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78926400).

53178312 is an abundant number, since it is smaller than the sum of its proper divisors (104674488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53178312 is a wasteful number, since it uses less digits than its factorization.

53178312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 74 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 53178312 is about 7292.3461245336. The cubic root of 53178312 is about 376.0493559776.

The spelling of 53178312 in words is "fifty-three million, one hundred seventy-eight thousand, three hundred twelve".