53816140 has 48 divisors (see below), whose sum is σ = 129729600. Its totient is φ = 18369792.

The previous prime is 53816107. The next prime is 53816153. The reversal of 53816140 is 4161835.

53816140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 53816099 and 53816108.

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 15 ways as a sum of consecutive naturals, for example, 36946 + ... + 38374.

It is an arithmetic number, because the mean of its divisors is an integer number (2702700).

Almost surely, 2^53816140 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 53816140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64864800).

53816140 is an abundant number, since it is smaller than the sum of its proper divisors (75913460).

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

53816140 is a wasteful number, since it uses less digits than its factorization.

53816140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714 (or 1712 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 53816140 is about 7335.9484731015. The cubic root of 53816140 is about 377.5468473942.

Adding to 53816140 its reverse (4161835), we get a palindrome (57977975).

It can be divided in two parts, 53816 and 140, that added together give a triangular number (53956 = T₃₂₈).

The spelling of 53816140 in words is "fifty-three million, eight hundred sixteen thousand, one hundred forty".