51153266 has 4 divisors (see below), whose sum is σ = 76729902. Its totient is φ = 25576632.

The previous prime is 51153257. The next prime is 51153287. The reversal of 51153266 is 66235115.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66235115 = 5 ⋅13247023.

It can be written as a sum of positive squares in only one way, i.e., 50822641 + 330625 = 7129^2 + 575^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12788315 + ... + 12788318.

Almost surely, 2^51153266 is an apocalyptic number.

51153266 is a deficient number, since it is larger than the sum of its proper divisors (25576636).

51153266 is a wasteful number, since it uses less digits than its factorization.

51153266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25576635.

The product of its digits is 5400, while the sum is 29.

The square root of 51153266 is about 7152.1511449353. The cubic root of 51153266 is about 371.2140931236.

The spelling of 51153266 in words is "fifty-one million, one hundred fifty-three thousand, two hundred sixty-six".