51113266 has 4 divisors (see below), whose sum is σ = 76669902. Its totient is φ = 25556632.

The previous prime is 51113239. The next prime is 51113267. The reversal of 51113266 is 66231115.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 46580625 + 4532641 = 6825^2 + 2129^2 .

It is a super-2 number, since 2×51113266² = 5225131922373512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51113266.

It is not an unprimeable number, because it can be changed into a prime (51113267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12778315 + ... + 12778318.

Almost surely, 2^51113266 is an apocalyptic number.

51113266 is a deficient number, since it is larger than the sum of its proper divisors (25556636).

51113266 is a wasteful number, since it uses less digits than its factorization.

51113266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25556635.

The product of its digits is 1080, while the sum is 25.

The square root of 51113266 is about 7149.3542365727. The cubic root of 51113266 is about 371.1173092366.

The spelling of 51113266 in words is "fifty-one million, one hundred thirteen thousand, two hundred sixty-six".