51030786 has 16 divisors (see below), whose sum is σ = 102487968. Its totient is φ = 16939200.

The previous prime is 51030781. The next prime is 51030797. The reversal of 51030786 is 68703015.

It is a super-2 number, since 2×51030786² = 5208282239555592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51030781) 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, 16200 + ... + 19091.

It is an arithmetic number, because the mean of its divisors is an integer number (6405498).

Almost surely, 2^51030786 is an apocalyptic number.

51030786 is an abundant number, since it is smaller than the sum of its proper divisors (51457182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51030786 is a wasteful number, since it uses less digits than its factorization.

51030786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35537.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 51030786 is about 7143.5835544914. The cubic root of 51030786 is about 370.9175813412.

The spelling of 51030786 in words is "fifty-one million, thirty thousand, seven hundred eighty-six".