51388622 has 16 divisors (see below), whose sum is σ = 78008832. Its totient is φ = 25387800.

The previous prime is 51388613. The next prime is 51388627. The reversal of 51388622 is 22688315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51388627) 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, 79103 + ... + 79749.

It is an arithmetic number, because the mean of its divisors is an integer number (4875552).

Almost surely, 2^51388622 is an apocalyptic number.

51388622 is a deficient number, since it is larger than the sum of its proper divisors (26620210).

51388622 is a wasteful number, since it uses less digits than its factorization.

51388622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063.

The product of its digits is 23040, while the sum is 35.

The square root of 51388622 is about 7168.5857740561. The cubic root of 51388622 is about 371.7825404578.

The spelling of 51388622 in words is "fifty-one million, three hundred eighty-eight thousand, six hundred twenty-two".