51267651 has 8 divisors (see below), whose sum is σ = 68643840. Its totient is φ = 34034952.

The previous prime is 51267611. The next prime is 51267661. The reversal of 51267651 is 15676215.

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

It is not a de Polignac number, because 51267651 - 2¹⁰ = 51266627 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (51267611) 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, 35035 + ... + 36468.

It is an arithmetic number, because the mean of its divisors is an integer number (8580480).

Almost surely, 2^51267651 is an apocalyptic number.

51267651 is a deficient number, since it is larger than the sum of its proper divisors (17376189).

51267651 is a wasteful number, since it uses less digits than its factorization.

51267651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71745.

The product of its digits is 12600, while the sum is 33.

The square root of 51267651 is about 7160.1432248245. The cubic root of 51267651 is about 371.4905806094.

The spelling of 51267651 in words is "fifty-one million, two hundred sixty-seven thousand, six hundred fifty-one".