66924552 has 16 divisors (see below), whose sum is σ = 167311440. Its totient is φ = 22308176.

The previous prime is 66924551. The next prime is 66924577. The reversal of 66924552 is 25542966.

It is a self number, because there is not a number n which added to its sum of digits gives 66924552.

It is not an unprimeable number, because it can be changed into a prime (66924551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1394238 + ... + 1394285.

It is an arithmetic number, because the mean of its divisors is an integer number (10456965).

Almost surely, 2^66924552 is an apocalyptic number.

It is an amenable number.

66924552 is an abundant number, since it is smaller than the sum of its proper divisors (100386888).

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

66924552 is a wasteful number, since it uses less digits than its factorization.

66924552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2788532 (or 2788528 counting only the distinct ones).

The product of its digits is 129600, while the sum is 39.

The square root of 66924552 is about 8180.7427535646. The cubic root of 66924552 is about 406.0022972198.

It can be divided in two parts, 66924 and 552, that added together give a palindrome (67476).

The spelling of 66924552 in words is "sixty-six million, nine hundred twenty-four thousand, five hundred fifty-two".