53356446 has 96 divisors (see below), whose sum is σ = 143095680. Its totient is φ = 14126400.

The previous prime is 53356441. The next prime is 53356483. The reversal of 53356446 is 64465335.

53356446 is a `hidden beast` number, since 5 + 3 + 3 + 5 + 644 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 53356446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53356441) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48361 + ... + 49451.

It is an arithmetic number, because the mean of its divisors is an integer number (1490580).

Almost surely, 2^53356446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53356446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71547840).

53356446 is an abundant number, since it is smaller than the sum of its proper divisors (89739234).

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

53356446 is a wasteful number, since it uses less digits than its factorization.

53356446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142 (or 1139 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

The square root of 53356446 is about 7304.5496781116. The cubic root of 53356446 is about 376.4687783298.

Subtracting 53356446 from its reverse (64465335), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 5335 and 6446, that added together give a triangular number (11781 = T₁₅₃).

The spelling of 53356446 in words is "fifty-three million, three hundred fifty-six thousand, four hundred forty-six".