53132681394 has 96 divisors (see below), whose sum is σ = 125522704944. Its totient is φ = 16145326080.

The previous prime is 53132681377. The next prime is 53132681411. The reversal of 53132681394 is 49318623135.

53132681394 is a `hidden beast` number, since 53 + 132 + 6 + 81 + 394 = 666.

53132681394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (53132681377) and next prime (53132681411).

It can be written as a sum of positive squares in 8 ways, for example, as 28259291025 + 24873390369 = 168105^2 + 157713^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11823412 + ... + 11827904.

Almost surely, 2^53132681394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53132681394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62761352472).

53132681394 is an abundant number, since it is smaller than the sum of its proper divisors (72390023550).

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

53132681394 is a wasteful number, since it uses less digits than its factorization.

53132681394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5132 (or 5129 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The spelling of 53132681394 in words is "fifty-three billion, one hundred thirty-two million, six hundred eighty-one thousand, three hundred ninety-four".