53185197 has 32 divisors (see below), whose sum is σ = 81793152. Its totient is φ = 30449664.

The previous prime is 53185193. The next prime is 53185211. The reversal of 53185197 is 79158135.

It is not a de Polignac number, because 53185197 - 2² = 53185193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53185193) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63898 + ... + 64724.

It is an arithmetic number, because the mean of its divisors is an integer number (2556036).

Almost surely, 2^53185197 is an apocalyptic number.

It is an amenable number.

53185197 is a deficient number, since it is larger than the sum of its proper divisors (28607955).

53185197 is a wasteful number, since it uses less digits than its factorization.

53185197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957.

The product of its digits is 37800, while the sum is 39.

The square root of 53185197 is about 7292.8181795517. The cubic root of 53185197 is about 376.0655843232.

The spelling of 53185197 in words is "fifty-three million, one hundred eighty-five thousand, one hundred ninety-seven".