51152331 has 8 divisors (see below), whose sum is σ = 68382720. Its totient is φ = 34011752.

The previous prime is 51152323. The next prime is 51152357. The reversal of 51152331 is 13325115.

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 51152331 - 2³ = 51152323 is a prime.

It is a super-2 number, since 2×51152331² = 5233121933467122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51152298 and 51152307.

It is not an unprimeable number, because it can be changed into a prime (51152131) 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, 21111 + ... + 23408.

It is an arithmetic number, because the mean of its divisors is an integer number (8547840).

Almost surely, 2^51152331 is an apocalyptic number.

51152331 is a deficient number, since it is larger than the sum of its proper divisors (17230389).

51152331 is a wasteful number, since it uses less digits than its factorization.

51152331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44905.

The product of its digits is 450, while the sum is 21.

The square root of 51152331 is about 7152.0857796869. The cubic root of 51152331 is about 371.2118313762.

Adding to 51152331 its reverse (13325115), we get a palindrome (64477446).

The spelling of 51152331 in words is "fifty-one million, one hundred fifty-two thousand, three hundred thirty-one".