53445366 has 64 divisors (see below), whose sum is σ = 134668800. Its totient is φ = 15575328.

The previous prime is 53445349. The next prime is 53445377. The reversal of 53445366 is 66354435.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

Its product of digits (129600) is a multiple of the sum of its prime factors (4050).

It is a self number, because there is not a number n which added to its sum of digits gives 53445366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11335 + ... + 15341.

It is an arithmetic number, because the mean of its divisors is an integer number (2104200).

Almost surely, 2^53445366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53445366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67334400).

53445366 is an abundant number, since it is smaller than the sum of its proper divisors (81223434).

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

53445366 is a wasteful number, since it uses less digits than its factorization.

53445366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4050 (or 4044 counting only the distinct ones).

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

The square root of 53445366 is about 7310.6337618568. The cubic root of 53445366 is about 376.6777941562.

The spelling of 53445366 in words is "fifty-three million, four hundred forty-five thousand, three hundred sixty-six".