51229766 has 16 divisors (see below), whose sum is σ = 89061120. Its totient is φ = 21645960.

The previous prime is 51229753. The next prime is 51229769. The reversal of 51229766 is 66792215.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51229769) 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, 24776 + ... + 26763.

It is an arithmetic number, because the mean of its divisors is an integer number (5566320).

Almost surely, 2^51229766 is an apocalyptic number.

51229766 is a deficient number, since it is larger than the sum of its proper divisors (37831354).

51229766 is a wasteful number, since it uses less digits than its factorization.

51229766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51619.

The product of its digits is 45360, while the sum is 38.

The square root of 51229766 is about 7157.4971882635. The cubic root of 51229766 is about 371.3990518805.

The spelling of 51229766 in words is "fifty-one million, two hundred twenty-nine thousand, seven hundred sixty-six".