53481408 has 28 divisors (see below), whose sum is σ = 141503400. Its totient is φ = 17827072.

The previous prime is 53481403. The next prime is 53481451. The reversal of 53481408 is 80418435.

It is a super-2 number, since 2×53481408² = 5720522003324928, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53481401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139083 + ... + 139466.

Almost surely, 2^53481408 is an apocalyptic number.

It is an amenable number.

53481408 is an abundant number, since it is smaller than the sum of its proper divisors (88021992).

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

53481408 is a wasteful number, since it uses less digits than its factorization.

53481408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278564 (or 278554 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 53481408 is about 7313.0983857733. The cubic root of 53481408 is about 376.7624486449.

The spelling of 53481408 in words is "fifty-three million, four hundred eighty-one thousand, four hundred eight".