53197550 has 48 divisors (see below), whose sum is σ = 116754432. Its totient is φ = 17647200.

The previous prime is 53197537. The next prime is 53197567. The reversal of 53197550 is 5579135.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 53197550.

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, 8399 + ... + 13301.

It is an arithmetic number, because the mean of its divisors is an integer number (2432384).

Almost surely, 2^53197550 is an apocalyptic number.

53197550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53197550 is an abundant number, since it is smaller than the sum of its proper divisors (63556882).

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

53197550 is a wasteful number, since it uses less digits than its factorization.

53197550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4953 (or 4948 counting only the distinct ones).

The product of its (nonzero) digits is 23625, while the sum is 35.

The square root of 53197550 is about 7293.6650594883. The cubic root of 53197550 is about 376.0946975528.

The spelling of 53197550 in words is "fifty-three million, one hundred ninety-seven thousand, five hundred fifty".