51011343 has 8 divisors (see below), whose sum is σ = 75572400. Its totient is φ = 34007544.

The previous prime is 51011293. The next prime is 51011347. The reversal of 51011343 is 34311015.

51011343 is a `hidden beast` number, since 510 + 113 + 43 = 666.

It is not a de Polignac number, because 51011343 - 2⁹ = 51010831 is a prime.

It is a super-2 number, since 2×51011343² = 5204314229327298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51011347) 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, 944628 + ... + 944681.

It is an arithmetic number, because the mean of its divisors is an integer number (9446550).

Almost surely, 2^51011343 is an apocalyptic number.

51011343 is a deficient number, since it is larger than the sum of its proper divisors (24561057).

51011343 is a wasteful number, since it uses less digits than its factorization.

51011343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889318 (or 1889312 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 51011343 is about 7142.2225532393. Note that the first 3 decimals coincide. The cubic root of 51011343 is about 370.8704681689.

Adding to 51011343 its reverse (34311015), we get a palindrome (85322358).

The spelling of 51011343 in words is "fifty-one million, eleven thousand, three hundred forty-three".