51189722 has 16 divisors (see below), whose sum is σ = 79978752. Its totient is φ = 24549840.

The previous prime is 51189707. The next prime is 51189739. The reversal of 51189722 is 22798115.

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, 383 + ... + 10125.

It is an arithmetic number, because the mean of its divisors is an integer number (4998672).

Almost surely, 2^51189722 is an apocalyptic number.

51189722 is a deficient number, since it is larger than the sum of its proper divisors (28789030).

51189722 is a wasteful number, since it uses less digits than its factorization.

51189722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9853.

The product of its digits is 10080, while the sum is 35.

The square root of 51189722 is about 7154.6992948691. The cubic root of 51189722 is about 371.3022580210.

The spelling of 51189722 in words is "fifty-one million, one hundred eighty-nine thousand, seven hundred twenty-two".