53881308 has 48 divisors (see below), whose sum is σ = 150441760. Its totient is φ = 16578432.

The previous prime is 53881307. The next prime is 53881309. The reversal of 53881308 is 80318835.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53881307) and next prime (53881309).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53881307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17785 + ... + 20592.

Almost surely, 2^53881308 is an apocalyptic number.

It is an amenable number.

53881308 is an abundant number, since it is smaller than the sum of its proper divisors (96560452).

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

53881308 is a wasteful number, since it uses less digits than its factorization.

53881308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38403 (or 38395 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 53881308 is about 7340.3888180395. The cubic root of 53881308 is about 377.6991811757.

The spelling of 53881308 in words is "fifty-three million, eight hundred eighty-one thousand, three hundred eight".