51340534 has 24 divisors (see below), whose sum is σ = 92011680. Its totient is φ = 21406896.

The previous prime is 51340519. The next prime is 51340537. The reversal of 51340534 is 43504315.

It is a junction number, because it is equal to n+sod(n) for n = 51340499 and 51340508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51340537) 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, 3454 + ... + 10705.

It is an arithmetic number, because the mean of its divisors is an integer number (3833820).

Almost surely, 2^51340534 is an apocalyptic number.

51340534 is a deficient number, since it is larger than the sum of its proper divisors (40671146).

51340534 is a wasteful number, since it uses less digits than its factorization.

51340534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14212 (or 14205 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 51340534 is about 7165.2309104452. The cubic root of 51340534 is about 371.6665364497. Note that the first 3 decimals are identical.

Adding to 51340534 its reverse (43504315), we get a palindrome (94844849).

The spelling of 51340534 in words is "fifty-one million, three hundred forty thousand, five hundred thirty-four".