66937525 has 12 divisors (see below), whose sum is σ = 85681024. Its totient is φ = 51822000.

The previous prime is 66937501. The next prime is 66937529. The reversal of 66937525 is 52573966.

It is not a de Polignac number, because 66937525 - 2⁷ = 66937397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66937529) 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 11 ways as a sum of consecutive naturals, for example, 42411 + ... + 43960.

Almost surely, 2^66937525 is an apocalyptic number.

It is an amenable number.

66937525 is a deficient number, since it is larger than the sum of its proper divisors (18743499).

66937525 is a wasteful number, since it uses less digits than its factorization.

66937525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86412 (or 86407 counting only the distinct ones).

The product of its digits is 340200, while the sum is 43.

The square root of 66937525 is about 8181.5356138075. The cubic root of 66937525 is about 406.0285293840.

The spelling of 66937525 in words is "sixty-six million, nine hundred thirty-seven thousand, five hundred twenty-five".