53215050 has 96 divisors (see below), whose sum is σ = 153561600. Its totient is φ = 11943360.

The previous prime is 53215039. The next prime is 53215061. The reversal of 53215050 is 5051235.

It is an interprime number because it is at equal distance from previous prime (53215039) and next prime (53215061).

It is a Harshad number since it is a multiple of its sum of digits (21).

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 47 ways as a sum of consecutive naturals, for example, 61521 + ... + 62379.

It is an arithmetic number, because the mean of its divisors is an integer number (1599600).

Almost surely, 2^53215050 is an apocalyptic number.

53215050 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 53215050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76780800).

53215050 is an abundant number, since it is smaller than the sum of its proper divisors (100346550).

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

53215050 is a wasteful number, since it uses less digits than its factorization.

53215050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940 (or 935 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 53215050 is about 7294.8646320545. The cubic root of 53215050 is about 376.1359333843.

Adding to 53215050 its reverse (5051235), we get a palindrome (58266285).

The spelling of 53215050 in words is "fifty-three million, two hundred fifteen thousand, fifty".