53125666 has 8 divisors (see below), whose sum is σ = 86932944. Its totient is φ = 24148020.

The previous prime is 53125621. The next prime is 53125669. The reversal of 53125666 is 66652135.

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

It is not an unprimeable number, because it can be changed into a prime (53125669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1207380 + ... + 1207423.

It is an arithmetic number, because the mean of its divisors is an integer number (10866618).

Almost surely, 2^53125666 is an apocalyptic number.

53125666 is a deficient number, since it is larger than the sum of its proper divisors (33807278).

53125666 is a wasteful number, since it uses less digits than its factorization.

53125666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414816.

The product of its digits is 32400, while the sum is 34.

The square root of 53125666 is about 7288.7355556365. The cubic root of 53125666 is about 375.9252199633.

The spelling of 53125666 in words is "fifty-three million, one hundred twenty-five thousand, six hundred sixty-six".