53445766 has 32 divisors (see below), whose sum is σ = 89890560. Its totient is φ = 23628000.

The previous prime is 53445761. The next prime is 53445781. The reversal of 53445766 is 66754435.

Its product of digits (302400) is a multiple of the sum of its prime divisors (540).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53445761) 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, 148695 + ... + 149053.

It is an arithmetic number, because the mean of its divisors is an integer number (2809080).

Almost surely, 2^53445766 is an apocalyptic number.

53445766 is a deficient number, since it is larger than the sum of its proper divisors (36444794).

53445766 is a wasteful number, since it uses less digits than its factorization.

53445766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540.

The product of its digits is 302400, while the sum is 40.

The square root of 53445766 is about 7310.6611192149. The cubic root of 53445766 is about 376.6787338743.

The spelling of 53445766 in words is "fifty-three million, four hundred forty-five thousand, seven hundred sixty-six".