53430356 has 48 divisors (see below), whose sum is σ = 114240000. Its totient is φ = 21355488.

The previous prime is 53430347. The next prime is 53430359. The reversal of 53430356 is 65303435.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53430359) 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, 34895 + ... + 36393.

It is an arithmetic number, because the mean of its divisors is an integer number (2380000).

Almost surely, 2^53430356 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 53430356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57120000).

53430356 is an abundant number, since it is smaller than the sum of its proper divisors (60809644).

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

53430356 is a wasteful number, since it uses less digits than its factorization.

53430356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596 (or 1594 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 29.

The square root of 53430356 is about 7309.6071029844. The cubic root of 53430356 is about 376.6425278428.

The spelling of 53430356 in words is "fifty-three million, four hundred thirty thousand, three hundred fifty-six".