53433380 has 192 divisors, whose sum is σ = 160538112. Its totient is φ = 14376960.

The previous prime is 53433361. The next prime is 53433383. The reversal of 53433380 is 8333435.

It is not an unprimeable number, because it can be changed into a prime (53433383) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 340262 + ... + 340418.

It is an arithmetic number, because the mean of its divisors is an integer number (836136).

Almost surely, 2^53433380 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 53433380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80269056).

53433380 is an abundant number, since it is smaller than the sum of its proper divisors (107104732).

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

53433380 is a wasteful number, since it uses less digits than its factorization.

53433380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 53433380 is about 7309.8139511208. The cubic root of 53433380 is about 376.6496333262.

The spelling of 53433380 in words is "fifty-three million, four hundred thirty-three thousand, three hundred eighty".