53191567 has 32 divisors (see below), whose sum is σ = 65802240. Its totient is φ = 42588000.

The previous prime is 53191561. The next prime is 53191577. The reversal of 53191567 is 76519135.

It is not a de Polignac number, because 53191567 - 2¹⁵ = 53158799 is a prime.

It is a Duffinian number.

Its product of digits (28350) is a multiple of the sum of its prime divisors (126).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 749142 + ... + 749212.

It is an arithmetic number, because the mean of its divisors is an integer number (2056320).

Almost surely, 2^53191567 is an apocalyptic number.

53191567 is a deficient number, since it is larger than the sum of its proper divisors (12610673).

53191567 is a wasteful number, since it uses less digits than its factorization.

53191567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 126 counting only the distinct ones).

The product of its digits is 28350, while the sum is 37.

The square root of 53191567 is about 7293.2548975063. The cubic root of 53191567 is about 376.0805975367.

It can be divided in two parts, 5319 and 1567, that added together give a palindrome (6886).

The spelling of 53191567 in words is "fifty-three million, one hundred ninety-one thousand, five hundred sixty-seven".