51153305 has 20 divisors (see below), whose sum is σ = 71627172. Its totient is φ = 35068320.

The previous prime is 51153287. The next prime is 51153337. The reversal of 51153305 is 50335115.

It can be written as a sum of positive squares in 2 ways, for example, as 36917776 + 14235529 = 6076^2 + 3773^2 .

It is not a de Polignac number, because 51153305 - 2¹⁰ = 51152281 is a prime.

It is a super-2 number, since 2×51153305² = 5233321224846050, which contains 22 as substring.

It is a Duffinian number.

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 in 19 ways as a sum of consecutive naturals, for example, 9875 + ... + 14135.

Almost surely, 2^51153305 is an apocalyptic number.

It is an amenable number.

51153305 is a deficient number, since it is larger than the sum of its proper divisors (20473867).

51153305 is an frugal number, since it uses more digits than its factorization.

51153305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4294 (or 4273 counting only the distinct ones).

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 51153305 is about 7152.1538713873. The cubic root of 51153305 is about 371.2141874632.

The spelling of 51153305 in words is "fifty-one million, one hundred fifty-three thousand, three hundred five".