51274851 has 8 divisors (see below), whose sum is σ = 69329664. Its totient is φ = 33701640.

The previous prime is 51274849. The next prime is 51274921. The reversal of 51274851 is 15847215.

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

It is not a de Polignac number, because 51274851 - 2¹ = 51274849 is a prime.

It is a super-2 number, since 2×51274851² = 5258220690144402, which contains 22 as substring.

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 (51274801) 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, 120151 + ... + 120576.

It is an arithmetic number, because the mean of its divisors is an integer number (8666208).

Almost surely, 2^51274851 is an apocalyptic number.

51274851 is a deficient number, since it is larger than the sum of its proper divisors (18054813).

51274851 is a wasteful number, since it uses less digits than its factorization.

51274851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240801.

The product of its digits is 11200, while the sum is 33.

The square root of 51274851 is about 7160.6459904118. The cubic root of 51274851 is about 371.5079704379.

It can be divided in two parts, 51274 and 851, that added together give a palindrome (52125).

The spelling of 51274851 in words is "fifty-one million, two hundred seventy-four thousand, eight hundred fifty-one".