51340780 has 24 divisors (see below), whose sum is σ = 108425520. Its totient is φ = 20420160.

The previous prime is 51340777. The next prime is 51340787. The reversal of 51340780 is 8704315.

It is not an unprimeable number, because it can be changed into a prime (51340787) 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, 3591 + ... + 10750.

It is an arithmetic number, because the mean of its divisors is an integer number (4517730).

Almost surely, 2^51340780 is an apocalyptic number.

It is an amenable number.

51340780 is an abundant number, since it is smaller than the sum of its proper divisors (57084740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51340780 is a wasteful number, since it uses less digits than its factorization.

51340780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14529 (or 14527 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 51340780 is about 7165.2480766544. The cubic root of 51340780 is about 371.6671300666.

The spelling of 51340780 in words is "fifty-one million, three hundred forty thousand, seven hundred eighty".