53197730 has 8 divisors (see below), whose sum is σ = 95755932. Its totient is φ = 21279088.

The previous prime is 53197699. The next prime is 53197733. The reversal of 53197730 is 3779135.

It can be written as a sum of positive squares in 2 ways, for example, as 45171841 + 8025889 = 6721^2 + 2833^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (53197733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2659877 + ... + 2659896.

Almost surely, 2^53197730 is an apocalyptic number.

53197730 is a deficient number, since it is larger than the sum of its proper divisors (42558202).

53197730 is a wasteful number, since it uses less digits than its factorization.

53197730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5319780.

The product of its (nonzero) digits is 19845, while the sum is 35.

The square root of 53197730 is about 7293.6773989532. The cubic root of 53197730 is about 376.0951217388.

The spelling of 53197730 in words is "fifty-three million, one hundred ninety-seven thousand, seven hundred thirty".