52256191 has 4 divisors (see below), whose sum is σ = 56275912. Its totient is φ = 48236472.

The previous prime is 52256189. The next prime is 52256203. The reversal of 52256191 is 19165225.

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

It is a cyclic number.

It is not a de Polignac number, because 52256191 - 2¹ = 52256189 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52256291) 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, 2009841 + ... + 2009866.

It is an arithmetic number, because the mean of its divisors is an integer number (14068978).

Almost surely, 2^52256191 is an apocalyptic number.

52256191 is a deficient number, since it is larger than the sum of its proper divisors (4019721).

52256191 is a wasteful number, since it uses less digits than its factorization.

52256191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4019720.

The product of its digits is 5400, while the sum is 31.

The square root of 52256191 is about 7228.8443751405. The cubic root of 52256191 is about 373.8630834200.

The spelling of 52256191 in words is "fifty-two million, two hundred fifty-six thousand, one hundred ninety-one".