51323534 has 16 divisors (see below), whose sum is σ = 80485920. Its totient is φ = 24499200.

The previous prime is 51323521. The next prime is 51323543. The reversal of 51323534 is 43532315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42134 + ... + 43334.

It is an arithmetic number, because the mean of its divisors is an integer number (5030370).

Almost surely, 2^51323534 is an apocalyptic number.

51323534 is a deficient number, since it is larger than the sum of its proper divisors (29162386).

51323534 is a wasteful number, since it uses less digits than its factorization.

51323534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2155.

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

The square root of 51323534 is about 7164.0445280582. The cubic root of 51323534 is about 371.6255095513.

Adding to 51323534 its reverse (43532315), we get a palindrome (94855849).

The spelling of 51323534 in words is "fifty-one million, three hundred twenty-three thousand, five hundred thirty-four".