66925629 has 8 divisors (see below), whose sum is σ = 99149120. Its totient is φ = 44617068.

The previous prime is 66925609. The next prime is 66925633. The reversal of 66925629 is 92652966.

It is not a de Polignac number, because 66925629 - 2¹¹ = 66923581 is a prime.

It is a super-3 number, since 3×66925629³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66925609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1239337 + ... + 1239390.

It is an arithmetic number, because the mean of its divisors is an integer number (12393640).

Almost surely, 2^66925629 is an apocalyptic number.

It is an amenable number.

66925629 is a deficient number, since it is larger than the sum of its proper divisors (32223491).

66925629 is a wasteful number, since it uses less digits than its factorization.

66925629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2478736 (or 2478730 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 66925629 is about 8180.8085786186. The cubic root of 66925629 is about 406.0044751058.

It can be divided in two parts, 6692 and 5629, that added together give a palindrome (12321).

The spelling of 66925629 in words is "sixty-six million, nine hundred twenty-five thousand, six hundred twenty-nine".