53998308 has 144 divisors (see below), whose sum is σ = 171714816. Its totient is φ = 13927680.

The previous prime is 53998297. The next prime is 53998333. The reversal of 53998308 is 80389935.

It is a super-3 number, since 3×53998308³ (a number of 24 digits) contains 333 as substring.

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, 173473 + ... + 173783.

It is an arithmetic number, because the mean of its divisors is an integer number (1192464).

Almost surely, 2^53998308 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53998308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85857408).

53998308 is an abundant number, since it is smaller than the sum of its proper divisors (117716508).

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

53998308 is a wasteful number, since it uses less digits than its factorization.

53998308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 53998308 is about 7348.3541014298. The cubic root of 53998308 is about 377.9723671746.

The spelling of 53998308 in words is "fifty-three million, nine hundred ninety-eight thousand, three hundred eight".