66056125 has 16 divisors (see below), whose sum is σ = 84455280. Its totient is φ = 51552000.

The previous prime is 66056119. The next prime is 66056147. The reversal of 66056125 is 52165066.

It can be written as a sum of positive squares in 8 ways, for example, as 34539129 + 31516996 = 5877^2 + 5614^2 .

It is not a de Polignac number, because 66056125 - 2¹¹ = 66054077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1320 + ... + 11569.

It is an arithmetic number, because the mean of its divisors is an integer number (5278455).

Almost surely, 2^66056125 is an apocalyptic number.

It is an amenable number.

66056125 is a deficient number, since it is larger than the sum of its proper divisors (18399155).

66056125 is a wasteful number, since it uses less digits than its factorization.

66056125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12945 (or 12935 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 66056125 is about 8127.4919255574. The cubic root of 66056125 is about 404.2385224328.

The spelling of 66056125 in words is "sixty-six million, fifty-six thousand, one hundred twenty-five".