66425524 has 24 divisors (see below), whose sum is σ = 128052288. Its totient is φ = 29898240.

The previous prime is 66425473. The next prime is 66425531. The reversal of 66425524 is 42552466.

It is a self number, because there is not a number n which added to its sum of digits gives 66425524.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2797 + ... + 11860.

It is an arithmetic number, because the mean of its divisors is an integer number (5335512).

Almost surely, 2^66425524 is an apocalyptic number.

It is an amenable number.

66425524 is a deficient number, since it is larger than the sum of its proper divisors (61626764).

66425524 is a wasteful number, since it uses less digits than its factorization.

66425524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14775 (or 14773 counting only the distinct ones).

The product of its digits is 57600, while the sum is 34.

The square root of 66425524 is about 8150.1855193609. The cubic root of 66425524 is about 404.9906495834.

The spelling of 66425524 in words is "sixty-six million, four hundred twenty-five thousand, five hundred twenty-four".