54145225 has 6 divisors (see below), whose sum is σ = 67140110. Its totient is φ = 43316160.

The previous prime is 54145219. The next prime is 54145249. The reversal of 54145225 is 52254145.

It can be written as a sum of positive squares in 3 ways, for example, as 328329 + 53816896 = 573^2 + 7336^2 .

It is not a de Polignac number, because 54145225 - 2¹³ = 54137033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54145193 and 54145202.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1082880 + ... + 1082929.

Almost surely, 2^54145225 is an apocalyptic number.

It is an amenable number.

54145225 is a deficient number, since it is larger than the sum of its proper divisors (12994885).

54145225 is a wasteful number, since it uses less digits than its factorization.

54145225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165819 (or 2165814 counting only the distinct ones).

The product of its digits is 8000, while the sum is 28.

The square root of 54145225 is about 7358.3439033522. The cubic root of 54145225 is about 378.3148487716.

The spelling of 54145225 in words is "fifty-four million, one hundred forty-five thousand, two hundred twenty-five".