53134380 has 216 divisors, whose sum is σ = 186421872. Its totient is φ = 12628224.

The previous prime is 53134379. The next prime is 53134391. The reversal of 53134380 is 8343135.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1832206 + ... + 1832234.

Almost surely, 2^53134380 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 53134380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93210936).

53134380 is an abundant number, since it is smaller than the sum of its proper divisors (133287492).

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

53134380 is a wasteful number, since it uses less digits than its factorization.

53134380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 53134380 is about 7289.3333028474. Note that the first 4 decimals coincide. The cubic root of 53134380 is about 375.9457726987.

The spelling of 53134380 in words is "fifty-three million, one hundred thirty-four thousand, three hundred eighty".