51482145 has 32 divisors (see below), whose sum is σ = 96776064. Its totient is φ = 23040000.

The previous prime is 51482143. The next prime is 51482149. The reversal of 51482145 is 54128415.

It is not a de Polignac number, because 51482145 - 2¹ = 51482143 is a prime.

It is a super-2 number, since 2×51482145² = 5300822507602050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51482143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9856 + ... + 14145.

It is an arithmetic number, because the mean of its divisors is an integer number (3024252).

Almost surely, 2^51482145 is an apocalyptic number.

51482145 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51482145 is a deficient number, since it is larger than the sum of its proper divisors (45293919).

51482145 is a wasteful number, since it uses less digits than its factorization.

51482145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24033.

The product of its digits is 6400, while the sum is 30.

The square root of 51482145 is about 7175.1059225631. The cubic root of 51482145 is about 372.0079415000.

The spelling of 51482145 in words is "fifty-one million, four hundred eighty-two thousand, one hundred forty-five".