51456353 has 16 divisors (see below), whose sum is σ = 58741200. Its totient is φ = 44728320.

The previous prime is 51456347. The next prime is 51456403. The reversal of 51456353 is 35365415.

It can be written as a sum of positive squares in 8 ways, for example, as 12730624 + 38725729 = 3568^2 + 6223^2 .

It is not a de Polignac number, because 51456353 - 2²⁴ = 34679137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51456343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13793 + ... + 17121.

It is an arithmetic number, because the mean of its divisors is an integer number (3671325).

Almost surely, 2^51456353 is an apocalyptic number.

It is an amenable number.

51456353 is a deficient number, since it is larger than the sum of its proper divisors (7284847).

51456353 is a wasteful number, since it uses less digits than its factorization.

51456353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3412.

The product of its digits is 27000, while the sum is 32.

The square root of 51456353 is about 7173.3083720136. The cubic root of 51456353 is about 371.9458071324.

The spelling of 51456353 in words is "fifty-one million, four hundred fifty-six thousand, three hundred fifty-three".