53821150 has 48 divisors (see below), whose sum is σ = 110644704. Its totient is φ = 19374080.

The previous prime is 53821139. The next prime is 53821169. The reversal of 53821150 is 5112835.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18174 + ... + 20926.

It is an arithmetic number, because the mean of its divisors is an integer number (2305098).

Almost surely, 2^53821150 is an apocalyptic number.

53821150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53821150 is an abundant number, since it is smaller than the sum of its proper divisors (56823554).

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

53821150 is a wasteful number, since it uses less digits than its factorization.

53821150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2805 (or 2800 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 53821150 is about 7336.2899342924. The cubic root of 53821150 is about 377.5585629069.

Adding to 53821150 its reverse (5112835), we get a palindrome (58933985).

The spelling of 53821150 in words is "fifty-three million, eight hundred twenty-one thousand, one hundred fifty".