51061826 has 4 divisors (see below), whose sum is σ = 76592742. Its totient is φ = 25530912.

The previous prime is 51061823. The next prime is 51061831. The reversal of 51061826 is 62816015.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62816015 = 5 ⋅12563203.

It can be written as a sum of positive squares in only one way, i.e., 34210801 + 16851025 = 5849^2 + 4105^2 .

It is not an unprimeable number, because it can be changed into a prime (51061823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12765455 + ... + 12765458.

Almost surely, 2^51061826 is an apocalyptic number.

51061826 is a deficient number, since it is larger than the sum of its proper divisors (25530916).

51061826 is a wasteful number, since it uses less digits than its factorization.

51061826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25530915.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 51061826 is about 7145.7558032723. The cubic root of 51061826 is about 370.9927709085.

The spelling of 51061826 in words is "fifty-one million, sixty-one thousand, eight hundred twenty-six".