51300782 has 16 divisors (see below), whose sum is σ = 84635712. Its totient is φ = 23172960.

The previous prime is 51300773. The next prime is 51300793. The reversal of 51300782 is 28700315.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 19769 + ... + 22212.

It is an arithmetic number, because the mean of its divisors is an integer number (5289732).

Almost surely, 2^51300782 is an apocalyptic number.

51300782 is a deficient number, since it is larger than the sum of its proper divisors (33334930).

51300782 is a wasteful number, since it uses less digits than its factorization.

51300782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42043.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 51300782 is about 7162.4564222060. The cubic root of 51300782 is about 371.5705869023.

The spelling of 51300782 in words is "fifty-one million, three hundred thousand, seven hundred eighty-two".