51298831 has 8 divisors (see below), whose sum is σ = 54246528. Its totient is φ = 48432000.

The previous prime is 51298829. The next prime is 51298837. The reversal of 51298831 is 13889215.

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

It is a cyclic number.

It is not a de Polignac number, because 51298831 - 2¹ = 51298829 is a prime.

It is a super-2 number, since 2×51298831² = 5263140123933122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51298837) 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, 18910 + ... + 21451.

It is an arithmetic number, because the mean of its divisors is an integer number (6780816).

Almost surely, 2^51298831 is an apocalyptic number.

51298831 is a deficient number, since it is larger than the sum of its proper divisors (2947697).

51298831 is a wasteful number, since it uses less digits than its factorization.

51298831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40433.

The product of its digits is 17280, while the sum is 37.

The square root of 51298831 is about 7162.3202246200. The cubic root of 51298831 is about 371.5658764907.

The spelling of 51298831 in words is "fifty-one million, two hundred ninety-eight thousand, eight hundred thirty-one".