53849550 has 48 divisors (see below), whose sum is σ = 134960112. Its totient is φ = 14208000.

The previous prime is 53849531. The next prime is 53849581. The reversal of 53849550 is 5594835.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53849499 and 53849508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12700 + ... + 16400.

It is an arithmetic number, because the mean of its divisors is an integer number (2811669).

Almost surely, 2^53849550 is an apocalyptic number.

53849550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 53849550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67480056).

53849550 is an abundant number, since it is smaller than the sum of its proper divisors (81110562).

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

53849550 is a wasteful number, since it uses less digits than its factorization.

53849550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3813 (or 3808 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 53849550 is about 7338.2252622824. The cubic root of 53849550 is about 377.6249604583.

The spelling of 53849550 in words is "fifty-three million, eight hundred forty-nine thousand, five hundred fifty".