53388894 has 16 divisors (see below), whose sum is σ = 114991632. Its totient is φ = 16427328.

The previous prime is 53388889. The next prime is 53388899. The reversal of 53388894 is 49888335.

It is an interprime number because it is at equal distance from previous prime (53388889) and next prime (53388899).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53388899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342159 + ... + 342314.

It is an arithmetic number, because the mean of its divisors is an integer number (7186977).

Almost surely, 2^53388894 is an apocalyptic number.

53388894 is an abundant number, since it is smaller than the sum of its proper divisors (61602738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53388894 is a wasteful number, since it uses less digits than its factorization.

53388894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684491.

The product of its digits is 829440, while the sum is 48.

The square root of 53388894 is about 7306.7704220127. The cubic root of 53388894 is about 376.5450776614.

The spelling of 53388894 in words is "fifty-three million, three hundred eighty-eight thousand, eight hundred ninety-four".