53191563 has 8 divisors (see below), whose sum is σ = 71077776. Its totient is φ = 35383200.

The previous prime is 53191561. The next prime is 53191577. The reversal of 53191563 is 36519135.

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

It is not a de Polignac number, because 53191563 - 2¹ = 53191561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53191561) 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, 17848 + ... + 20613.

It is an arithmetic number, because the mean of its divisors is an integer number (8884722).

Almost surely, 2^53191563 is an apocalyptic number.

53191563 is a deficient number, since it is larger than the sum of its proper divisors (17886213).

53191563 is a wasteful number, since it uses less digits than its factorization.

53191563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38925.

The product of its digits is 12150, while the sum is 33.

The square root of 53191563 is about 7293.2546232803. The cubic root of 53191563 is about 376.0805881096.

The spelling of 53191563 in words is "fifty-three million, one hundred ninety-one thousand, five hundred sixty-three".