53251394 has 32 divisors (see below), whose sum is σ = 96906240. Its totient is φ = 21452112.

The previous prime is 53251381. The next prime is 53251403. The reversal of 53251394 is 49315235.

It is a self number, because there is not a number n which added to its sum of digits gives 53251394.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 17597 + ... + 20399.

It is an arithmetic number, because the mean of its divisors is an integer number (3028320).

Almost surely, 2^53251394 is an apocalyptic number.

53251394 is a deficient number, since it is larger than the sum of its proper divisors (43654846).

53251394 is a wasteful number, since it uses less digits than its factorization.

53251394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2894.

The product of its digits is 16200, while the sum is 32.

The square root of 53251394 is about 7297.3552743443. The cubic root of 53251394 is about 376.2215430846.

The spelling of 53251394 in words is "fifty-three million, two hundred fifty-one thousand, three hundred ninety-four".