53494394 has 4 divisors (see below), whose sum is σ = 80241594. Its totient is φ = 26747196.

The previous prime is 53494391. The next prime is 53494417. The reversal of 53494394 is 49349435.

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., 45738169 + 7756225 = 6763^2 + 2785^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53494391) 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 as a sum of consecutive naturals, namely, 13373597 + ... + 13373600.

Almost surely, 2^53494394 is an apocalyptic number.

53494394 is a deficient number, since it is larger than the sum of its proper divisors (26747200).

53494394 is a wasteful number, since it uses less digits than its factorization.

53494394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26747199.

The product of its digits is 233280, while the sum is 41.

The square root of 53494394 is about 7313.9861908538. The cubic root of 53494394 is about 376.7929404949.

The spelling of 53494394 in words is "fifty-three million, four hundred ninety-four thousand, three hundred ninety-four".