51340024 has 16 divisors (see below), whose sum is σ = 97582320. Its totient is φ = 25318080.

The previous prime is 51340021. The next prime is 51340031. The reversal of 51340024 is 42004315.

It is a junction number, because it is equal to n+sod(n) for n = 51339983 and 51340010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51340021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43372 + ... + 44539.

It is an arithmetic number, because the mean of its divisors is an integer number (6098895).

Almost surely, 2^51340024 is an apocalyptic number.

It is an amenable number.

51340024 is a deficient number, since it is larger than the sum of its proper divisors (46242296).

51340024 is a wasteful number, since it uses less digits than its factorization.

51340024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87990 (or 87986 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 51340024 is about 7165.1953218318. The cubic root of 51340024 is about 371.6653057746.

Adding to 51340024 its reverse (42004315), we get a palindrome (93344339).

The spelling of 51340024 in words is "fifty-one million, three hundred forty thousand, twenty-four".