52694189 has 4 divisors (see below), whose sum is σ = 54511260. Its totient is φ = 50877120.

The previous prime is 52694177. The next prime is 52694249. The reversal of 52694189 is 98149625.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28536964 + 24157225 = 5342^2 + 4915^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52694189 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 (52694119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 908492 + ... + 908549.

It is an arithmetic number, because the mean of its divisors is an integer number (13627815).

Almost surely, 2^52694189 is an apocalyptic number.

It is an amenable number.

52694189 is a deficient number, since it is larger than the sum of its proper divisors (1817071).

52694189 is a wasteful number, since it uses less digits than its factorization.

52694189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817070.

The product of its digits is 155520, while the sum is 44.

The square root of 52694189 is about 7259.0763186510. The cubic root of 52694189 is about 374.9047200896.

The spelling of 52694189 in words is "fifty-two million, six hundred ninety-four thousand, one hundred eighty-nine".