66125254 has 8 divisors (see below), whose sum is σ = 106817760. Its totient is φ = 30519336.

The previous prime is 66125239. The next prime is 66125303. The reversal of 66125254 is 45252166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1271614 + ... + 1271665.

It is an arithmetic number, because the mean of its divisors is an integer number (13352220).

Almost surely, 2^66125254 is an apocalyptic number.

66125254 is a deficient number, since it is larger than the sum of its proper divisors (40692506).

66125254 is a wasteful number, since it uses less digits than its factorization.

66125254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543294.

The product of its digits is 14400, while the sum is 31.

The square root of 66125254 is about 8131.7436014670. The cubic root of 66125254 is about 404.3794877220.

The spelling of 66125254 in words is "sixty-six million, one hundred twenty-five thousand, two hundred fifty-four".