53194287 has 4 divisors (see below), whose sum is σ = 70925720. Its totient is φ = 35462856.

The previous prime is 53194283. The next prime is 53194303. The reversal of 53194287 is 78249135.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 53194287 - 2² = 53194283 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53194283) 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, 8865712 + ... + 8865717.

It is an arithmetic number, because the mean of its divisors is an integer number (17731430).

Almost surely, 2^53194287 is an apocalyptic number.

53194287 is a deficient number, since it is larger than the sum of its proper divisors (17731433).

53194287 is a wasteful number, since it uses less digits than its factorization.

53194287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17731432.

The product of its digits is 60480, while the sum is 39.

The square root of 53194287 is about 7293.4413687916. The cubic root of 53194287 is about 376.0870078372.

The spelling of 53194287 in words is "fifty-three million, one hundred ninety-four thousand, two hundred eighty-seven".