51708622 has 16 divisors (see below), whose sum is σ = 90453600. Its totient is φ = 22160544.

The previous prime is 51708607. The next prime is 51708641. The reversal of 51708622 is 22680715.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37003 + ... + 38374.

It is an arithmetic number, because the mean of its divisors is an integer number (5653350).

Almost surely, 2^51708622 is an apocalyptic number.

51708622 is a deficient number, since it is larger than the sum of its proper divisors (38744978).

51708622 is an equidigital number, since it uses as much as digits as its factorization.

51708622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75400 (or 75386 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 51708622 is about 7190.8707400425. The cubic root of 51708622 is about 372.5526481446.

The spelling of 51708622 in words is "fifty-one million, seven hundred eight thousand, six hundred twenty-two".