53197830 has 96 divisors (see below), whose sum is σ = 165062880. Its totient is φ = 12156480.

The previous prime is 53197819. The next prime is 53197841. The reversal of 53197830 is 3879135.

53197830 is a `hidden beast` number, since 531 + 97 + 8 + 30 = 666.

53197830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (53197819) and next prime (53197841).

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 11220 + ... + 15240.

It is an arithmetic number, because the mean of its divisors is an integer number (1719405).

Almost surely, 2^53197830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53197830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82531440).

53197830 is an abundant number, since it is smaller than the sum of its proper divisors (111865050).

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

53197830 is a wasteful number, since it uses less digits than its factorization.

53197830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4051 (or 4038 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 53197830 is about 7293.6842542024. The cubic root of 53197830 is about 376.0953573973.

The spelling of 53197830 in words is "fifty-three million, one hundred ninety-seven thousand, eight hundred thirty".