51233669 has 8 divisors (see below), whose sum is σ = 53885952. Its totient is φ = 48643920.

The previous prime is 51233657. The next prime is 51233681. The reversal of 51233669 is 96633215.

It is an interprime number because it is at equal distance from previous prime (51233657) and next prime (51233681).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51233669 is a prime.

It is a super-2 number, since 2×51233669² = 5249777678403122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51233629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13949 + ... + 17234.

It is an arithmetic number, because the mean of its divisors is an integer number (6735744).

Almost surely, 2^51233669 is an apocalyptic number.

It is an amenable number.

51233669 is a deficient number, since it is larger than the sum of its proper divisors (2652283).

51233669 is a wasteful number, since it uses less digits than its factorization.

51233669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31267.

The product of its digits is 29160, while the sum is 35.

The square root of 51233669 is about 7157.7698342431. The cubic root of 51233669 is about 371.4084834656.

The spelling of 51233669 in words is "fifty-one million, two hundred thirty-three thousand, six hundred sixty-nine".