51152643 has 12 divisors (see below), whose sum is σ = 78233688. Its totient is φ = 32095680.

The previous prime is 51152603. The next prime is 51152663. The reversal of 51152643 is 34625115.

51152643 is a `hidden beast` number, since 5 + 1 + 15 + 2 + 643 = 666.

It is not a de Polignac number, because 51152643 - 2⁹ = 51152131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51152603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167013 + ... + 167318.

It is an arithmetic number, because the mean of its divisors is an integer number (6519474).

Almost surely, 2^51152643 is an apocalyptic number.

51152643 is a deficient number, since it is larger than the sum of its proper divisors (27081045).

51152643 is a wasteful number, since it uses less digits than its factorization.

51152643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334354 (or 334351 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 51152643 is about 7152.1075914726. The cubic root of 51152643 is about 371.2125861014.

Adding to 51152643 its reverse (34625115), we get a palindrome (85777758).

The spelling of 51152643 in words is "fifty-one million, one hundred fifty-two thousand, six hundred forty-three".