53193387 has 8 divisors (see below), whose sum is σ = 76380304. Its totient is φ = 32734368.

The previous prime is 53193379. The next prime is 53193409. The reversal of 53193387 is 78339135.

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

It is not a de Polignac number, because 53193387 - 2³ = 53193379 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1363933 = 53193387 / (5 + 3 + 1 + 9 + 3 + 3 + 8 + 7).

It is not an unprimeable number, because it can be changed into a prime (53193587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681928 + ... + 682005.

It is an arithmetic number, because the mean of its divisors is an integer number (9547538).

Almost surely, 2^53193387 is an apocalyptic number.

53193387 is a deficient number, since it is larger than the sum of its proper divisors (23186917).

53193387 is a wasteful number, since it uses less digits than its factorization.

53193387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363949.

The product of its digits is 68040, while the sum is 39.

The square root of 53193387 is about 7293.3796692617. The cubic root of 53193387 is about 376.0848868061.

The spelling of 53193387 in words is "fifty-three million, one hundred ninety-three thousand, three hundred eighty-seven".