51543332 has 12 divisors (see below), whose sum is σ = 91288176. Its totient is φ = 25461000.

The previous prime is 51543319. The next prime is 51543341. The reversal of 51543332 is 23334515.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77294 + ... + 77957.

It is an arithmetic number, because the mean of its divisors is an integer number (7607348).

Almost surely, 2^51543332 is an apocalyptic number.

It is an amenable number.

51543332 is a deficient number, since it is larger than the sum of its proper divisors (39744844).

51543332 is a wasteful number, since it uses less digits than its factorization.

51543332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155338 (or 155336 counting only the distinct ones).

The product of its digits is 5400, while the sum is 26.

The square root of 51543332 is about 7179.3684959055. The cubic root of 51543332 is about 372.1552614316.

Adding to 51543332 its reverse (23334515), we get a palindrome (74877847).

The spelling of 51543332 in words is "fifty-one million, five hundred forty-three thousand, three hundred thirty-two".