52090394 has 4 divisors (see below), whose sum is σ = 78135594. Its totient is φ = 26045196.

The previous prime is 52090393. The next prime is 52090403. The reversal of 52090394 is 49309025.

52090394 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 can be written as a sum of positive squares in only one way, i.e., 46063369 + 6027025 = 6787^2 + 2455^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 52090394.

It is not an unprimeable number, because it can be changed into a prime (52090393) by changing a digit.

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, 13022597 + ... + 13022600.

Almost surely, 2^52090394 is an apocalyptic number.

52090394 is a deficient number, since it is larger than the sum of its proper divisors (26045200).

52090394 is a wasteful number, since it uses less digits than its factorization.

52090394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26045199.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 52090394 is about 7217.3675256287. The cubic root of 52090394 is about 373.4672703600.

The spelling of 52090394 in words is "fifty-two million, ninety thousand, three hundred ninety-four".