51145325 has 36 divisors (see below), whose sum is σ = 79557408. Its totient is φ = 31687200.

The previous prime is 51145309. The next prime is 51145343. The reversal of 51145325 is 52354115.

51145325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51145325 - 2⁴ = 51145309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51145294 and 51145303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 313694 + ... + 313856.

It is an arithmetic number, because the mean of its divisors is an integer number (2209928).

Almost surely, 2^51145325 is an apocalyptic number.

51145325 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51145325 is a deficient number, since it is larger than the sum of its proper divisors (28412083).

51145325 is a wasteful number, since it uses less digits than its factorization.

51145325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 186 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 51145325 is about 7151.5959757246. The cubic root of 51145325 is about 371.1948831174.

The spelling of 51145325 in words is "fifty-one million, one hundred forty-five thousand, three hundred twenty-five".