51166653 has 16 divisors (see below), whose sum is σ = 69054336. Its totient is φ = 33698240.

The previous prime is 51166637. The next prime is 51166657. The reversal of 51166653 is 35666115.

It is a cyclic number.

It is not a de Polignac number, because 51166653 - 2⁴ = 51166637 is a prime.

It is a super-3 number, since 3×51166653³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51166657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161251 + ... + 161567.

It is an arithmetic number, because the mean of its divisors is an integer number (4315896).

Almost surely, 2^51166653 is an apocalyptic number.

It is an amenable number.

51166653 is a deficient number, since it is larger than the sum of its proper divisors (17887683).

51166653 is a wasteful number, since it uses less digits than its factorization.

51166653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804.

The product of its digits is 16200, while the sum is 33.

The square root of 51166653 is about 7153.0869559932. The cubic root of 51166653 is about 371.2464730021.

The spelling of 51166653 in words is "fifty-one million, one hundred sixty-six thousand, six hundred fifty-three".