52191838 has 4 divisors (see below), whose sum is σ = 78287760. Its totient is φ = 26095918.

The previous prime is 52191781. The next prime is 52191847. The reversal of 52191838 is 83819125.

52191838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 52191797 and 52191806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13047958 + ... + 13047961.

It is an arithmetic number, because the mean of its divisors is an integer number (19571940).

Almost surely, 2^52191838 is an apocalyptic number.

52191838 is a deficient number, since it is larger than the sum of its proper divisors (26095922).

52191838 is a wasteful number, since it uses less digits than its factorization.

52191838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26095921.

The product of its digits is 17280, while the sum is 37.

The square root of 52191838 is about 7224.3918775216. The cubic root of 52191838 is about 373.7095507729.

It can be divided in two parts, 52 and 191838, that added together give a triangular number (191890 = T₆₁₉).

The spelling of 52191838 in words is "fifty-two million, one hundred ninety-one thousand, eight hundred thirty-eight".