53801982 has 80 divisors (see below), whose sum is σ = 132335280. Its totient is φ = 16236288.

The previous prime is 53801971. The next prime is 53801983. The reversal of 53801982 is 28910835.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53801983) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 124038 + ... + 124470.

It is an arithmetic number, because the mean of its divisors is an integer number (1654191).

Almost surely, 2^53801982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53801982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66167640).

53801982 is an abundant number, since it is smaller than the sum of its proper divisors (78533298).

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

53801982 is a wasteful number, since it uses less digits than its factorization.

53801982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519 (or 510 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 53801982 is about 7334.9834355641. The cubic root of 53801982 is about 377.5137360322.

The spelling of 53801982 in words is "fifty-three million, eight hundred one thousand, nine hundred eighty-two".