53166645 has 64 divisors (see below), whose sum is σ = 109117440. Its totient is φ = 24058944.

The previous prime is 53166629. The next prime is 53166649. The reversal of 53166645 is 54666135.

It is not a de Polignac number, because 53166645 - 2⁴ = 53166629 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53166649) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 119794 + ... + 120236.

It is an arithmetic number, because the mean of its divisors is an integer number (1704960).

Almost surely, 2^53166645 is an apocalyptic number.

It is an amenable number.

53166645 is an abundant number, since it is smaller than the sum of its proper divisors (55950795).

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

53166645 is a wasteful number, since it uses less digits than its factorization.

53166645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591 (or 585 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 53166645 is about 7291.5461323371. The cubic root of 53166645 is about 376.0218529814.

It can be divided in two parts, 531 and 66645, that added together give a palindrome (67176).

The spelling of 53166645 in words is "fifty-three million, one hundred sixty-six thousand, six hundred forty-five".