53197365 has 16 divisors (see below), whose sum is σ = 91663488. Its totient is φ = 26189376.

The previous prime is 53197357. The next prime is 53197381. The reversal of 53197365 is 56379135.

It is not a de Polignac number, because 53197365 - 2³ = 53197357 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136209 + ... + 136598.

It is an arithmetic number, because the mean of its divisors is an integer number (5728968).

Almost surely, 2^53197365 is an apocalyptic number.

It is an amenable number.

53197365 is a deficient number, since it is larger than the sum of its proper divisors (38466123).

53197365 is a wasteful number, since it uses less digits than its factorization.

53197365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272828.

The product of its digits is 85050, while the sum is 39.

The square root of 53197365 is about 7293.6523772387. The cubic root of 53197365 is about 376.0942615828.

The spelling of 53197365 in words is "fifty-three million, one hundred ninety-seven thousand, three hundred sixty-five".